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Selected publications

Tkach, V.V., Sharpilo, V.P., Lisitsina, O.I. 1985. Rare and little known trematode species (Trematoda, Pleurogenidae, Lecithodendriidae) from bats of the fauna of USSR. Vestnik zoologii, N 6, 6-10 (in Russian).

Tkach, V.V., Sharpilo, L.D. 1988. Nematodes of the genus Molinostrongylus (Nematoda, Molineidae) from Ukrainian bats. Vestnik zoologii, N 4, 3-8 (in Russian).

Sharpilo, V.P., Tkach, V.V. 1989. Transmammary transmission of mesocercariae of Alaria alata (Trematoda, Alariidae) from lactating females of paratenic host to offspring. Vestnik zoologii, N 5, 81-83 (in Russian).

Tkach, V.V. 1991. Cestodes of genus Triodontolepis (Cestoda, Hymenolepididae) of the Ukrainian fauna, with description of cysticercoid T.torrentis. Vestnik zoologii, N 2, 3-10 (in Russian).

Tkach, V.V.,Velikanov, V.P. 1991. Pseudhymenolepis turkestanica sp.n. (Cestoda: Hymenolepididae), a new cestode from shrews. Annales de Parasitologie Humaine et Comparee, 66, 54-56.

Sharpilo, V.P., Tkach, V.V. 1992. On the type species of Plagiorchis Luhe, 1899 (Trematoda, Plagiorchiidae).Vestnik zoologii, N 5, 8-15 (in Russian).

Velikanov, V.P., Tkach, V.V. 1993. New cestode species (Cestoda, Hymenolepididae) from desert shrew. Vestnik zoologii, N 5, 3-11 (in Russian).

Tkach, V.V. 1994. Description of cysticercoid of Coronacanthus vassilevi Genov, 1980 (Cestoda, Hymenolepididae). Parasite, 1, 161-165.

Lisitsina, O.I., Tkach, V.V. 1994. Morphology of cystacanths of some acanthocephalans from aquatic and terrestrial intermediate hosts in the Ukraine. Helmintologia, 31, 83-90.

Tkach, V.V., Bray, R.A. 1995. Prosolecithus danubica n.sp. (Digenea: Dicrocoeliidae), a new digenean from shrews on islands of the Danube delta. Parasite, 2, N 2,133-140.

Kornyushin, V.V., Tkach, V.V. 1995. Drepanidotaenia czaplinskii sp.n. (Cyclophyllidea: Hymenolepididae) - a new cestode from Netta rufina (Pall.) (Anseriformes: Anatidae). Acta Parasitologica, 40, 132-136.

Iskova, N.I., Sharpilo, V.P., Sharpilo, L.D., Tkach, V.V. 1995. Catalogue of helminths of Ukraine. Trematodes of terrestrial vertebrates. Kiev, 93 p. (in Russian).

Tkach, V.V., Swiderski, Z.P. 1996. Scanning electron microscopy of the rare nematode species Pterygodermatites bovieri (Blanchard, 1886), a parasite of bats. Folia Parasitologic, 43, 301-304.

Kornyushin V.V., Czaplinski B., Tkach V.V. 1996. Composition of the genus Drepanidotaenia Railliet, 1892 and its place in the system of hymenolepidid cestodes. Helminthologia, 33, 153-155.

Swiderski, Z., Tkach, V. 1997. Ultrastructure of the infective eggs of the hymenolepidid cestode, Ditestolepis tripartita (Zarnowski, 1955), a parasite of shrews. Acta Parasitologica, 42, 46-54.

Swiderski, Z. & Tkach, V.V. 1997. Ultrastructure of Oncospheral Hook Formation in the Nematotaeniid Cestode, Nematotaenia dispar (Goeze, 1782). International Journal for Parasitology, 27, 299-304.

Tkach, V.V., Kornyushin, V.V. 1997. On the systematic position of Hymenolepis blarinae Rausch et Kuns, 1950 (Cestoda, Hymenolepididae), with re-description of the holotype. Systematic Parasitology, 37, 21-25.

Swiderski, Z. & Tkach, V.V. 1997. Differentiation and Ultrastructure of the Paruterine Organs and Paruterine Capsules, in the Nematotaeniid Cestode Nematotaenia dispar (Goeze, 1782) L�he, 1910, a Parasite of Amphibians. International Journal for Parasitology, 27, 635-644.

Swiderski, Z. & Tkach, V.V. 1997. Ultrastructural studies on the cellular organisation of the oncospheres of the nematotaeniid cestode, Nematotaenia dispar (Goeze, 1782). Acta Parasitologica, 42, 158-167.

Tkach, V., Swiderski, Z. 1997. Late stages of egg maturation in the cestode Pseudhymenolepis redonica Joyeux et Baer, 1935 (Cyclophyllidea, Hymenolepididae), a parasite of shrews. Acta Parasitologica, 42, 97-108.

Swiderski, Z., Tkach, V. 1997. Differentiation and Ultrastructure of Oncospheral and Uterine Envelopes in the Nematotaeniid Cestode Nematotaenia dispar (Goeze, 1782). International Journal of Parasitology, 27, 1065-1074.

Tkach, V.V. 1998. Neomylepis gen.n. - a new genus of hymenolepidid tapeworms (Cestoda, Cyclophyllidea), parasites of water shrews . Vestnik zoologii, 32, 90-93 p.

Tkach, V.V. 1998. Maritrema neomi n. sp. (Digenea: Microphallidae) from water shrews (Neomys). Journal of Parasitology, 84, 846-849.

Tkach, V.V., Swiderski, Z. 1998. Differentiation and ultrastructure of the oncospheral envelopes in the hymenolepidid cestode Staphylocystoides stefanskii (Zarnowski, 1954). Acta Parasitologica, 43, 221-230.

Swiderski, Z.P., Tkach, V.V. 1999. Electron microscopical studies on the cellular organisation of the oncospheres of the hymenolepidid cestode, Staphylocystoides stefanskii (Zarnowski, 1954). Acta Parasitologica, 44, 31-38.

Tkach, V., Pawlowski, J. 1999. A new method of DNA extraction from the ethanol-fixed parasitic worms. Acta Parasitologica, 44, 147-148.

Tkach, V., Grabda-Kazubska, B., Pawlowski, J. & Swiderski, Z. 1999. Molecular and morphological evidences for close phylogenetic affinities of the genera Macrodera, Leptophallus, Metaleptophallus and Paralepoderma (Digenea, Plagiorchioidea). Acta Parasitologica, 44, 170-179.

Kedra, H. A., Swiderski, Z., Tkach, V. V., Dubinski, P., Pawlowski, Z., Stefaniak, J., Pawlowski, J. 1999. Genetic analysis of Echinococcus granulosus from humans and pigs in Poland, Slovakia and Ukraine. A multicenter study. Acta Parasitologica, 44, 248-254.

Tkach, V., Pawlowski, J., Mariaux, J. 2000. Phylogenetic analysis of the suborder Plagiorchiata (Platyhelminthes, Digenea) based on partial lsrDNA sequences. International Journal for Parasitology, 30, 83-93.

Swiderski, Z., Tkach, V. V., Vaucher, C. 2000. Fine structure of the infective eggs of the dilepidid cestode Hepatocestus hepaticus (Baer, 1932), a parasite of shrews. Acta Parasitologica, 45, 71-82.

Tkach, V.V. 2000. First finding of bat parasite Pycnoporus macrolaimus (Digenea, Lecithodendriidae) in the Ukraine. Vestnik zoologii, 34, 71-73.

Kedra, A.H., Tkach, V.V., Swiderski, Z., Pawlowski, Z., Emets, A., Pawlowski J. 2000. Molecular characterization of Echinococcus granulosus from a wild boar. Acta Parasitologica, 45, 121-122.

Swiderski, Z., Chomicz, L., Grytner-Ziecina, B., Tkach, V. V. 2000. Electron microscope study on vitellogenesis in Catenotaenia pusilla (Goeze, 1782) (Cyclophyllidea, Catenotaeniidae). Acta Parasitologica, 45: 83-88.

Tkach, V., Pawlowski J., Sharpilo, V.P. 2000. Molecular and morphological differentiation between species of the Plagiorchis vespertilionis group (Digenea, Plagiorchiidae), occurring in European bats, with a re-description of P. vespertilionis (M�ller, 1780). Systematic Parasitology, 47, 9-22.

Swiderski, Z., Tkach, V. V., Salamatin, R.V. 2000. Oncospheral hook morphogenesis in the cestode Dilepis undula (Schrank, 1788) (Cyclophyllidea, Dilepididae). Acta Parasitologica, 45, 322-331.

Tkach, V. V., Bray, R. A. 2001. Allassogonoporus callosciuri n. sp. (Digenea: Allassogonoporidae) from the plantain squirrel Callosciurus notatus (Boddaert, 1785) (Rodentia: Sciuridae) on the Island of Borneo, Malaysia. Systematic Parasitology, 48:37-40.

Tkach, V., Pawlowski, J., Mariaux, J., Swiderski, Z. 2001. Molecular phylogeny of the suborder Plagiorchiata and its position in the system of Digenea. In: Littlewood, D.T.J. and Bray, R.A. (Eds.), Interrelationships of Platyhelminthes. Taylor & Francis, London, pp. 186-193.

Tkach, V., Grabda-Kazubska, B., Swiderski, Z. 2001. Systematic position and phylogenetic relationships of the family Omphalometridae Odening, 1959 (Digenea, Plagiorchiida) inferred from the partial lsrDNA sequences. International Journal for Parasitology, 31, 81-85.

Kuzmin, Y., Tkach, V.V., Snyder, S.D. 2001. Rhabdias ambystomae sp. n. (Nematoda: Rhabdiasidae) from the North American spotted salamander Ambystoma maculatum (Amphibia: Ambystomatidae). Comparative Parasitology, 68, 228-235

Kedra, A.H., Tkach, V.V., Swiderski, Z., Pawlowski, Z. 2001. Intraspecific variability within NADH dehydrogenase subunit 1 sequences of Taenia hydatigena. Parasitology International, 50, 145-148.

Swiderski, Z., Ndiaye, P.I., Tkach, V., Miquel, J., Marchand, B., Chomicz, L. 2001. Ultrastructural study of the embryonic development of the anoplocephalid cestode Anoplocephaloides dentata, intestinal parasite of Arvicolidae rodents. I. Egg envelope formation. Acta Parasitologica, 46, 171-185.

Swiderski, Z., Ndiaye, P.I., Miquel, J., Tkach, V., Marchand, B., Chomicz, L., Grytner-Ziecina, B. 2001. Ultrastructural study of the embryonic development of the anoplocephalid cestode Anoplocephaloides dentata, intestinal parasite of Arvicolidae rodents II. Differentiation and cellular organisation of the oncosphere. Acta Parasitologica, 46, 280-292.

Tkach V.V. , Snyder S.D., Swiderski Z. 2001. On the phylogenetic relationships of some members of Macroderoididae and Ochetosomatidae (Digenea, Plagiorchioidea). Acta Parasitologica, 46, 4, 267-275.

Snyder S.D., Tkach V.V. 2001. Phylogenetic and biogeographical relationships among some holarctic frog lung flukes (Digenea: Haematoloechidae). Journal of Parasitology, 87, N 6, 1433-1440.

Swiderski Z., Tkach V.V. 2002. Ultrastructure of embryonic development of Inermicapsifer
(Cestoda, Anoplocephalidae) with emphasis on the cellular organisation of the infective eggs. Acta Parasitologica, 47, 105-120.

Tkach V.V., Swiderski Z., Drozdz J., Demiaszkiewicz A. 2002. Molecular identification of Echinococcus granulosus from wild European beaver, Castor fiber (L.) from North-Eastern Poland.Acta Parasitologica, 47, 173-176.

Tkach V.V., Lotz J., Swiderski Z., Esteban J. G. 2002. On the systematic position of Ophiosacculus Macy, 1935 (Digenea: Lecithodendriidae), with the erection of the Ophiosacculinae n. subfam. Systematic Parasitology, 53, P.159-167.

Platt T.R., Tkach V.V. 2003. Two new species of Choanocotyle Jue Sue and Platt, 1998 (Digenea: Choanocotylidae) from an Australian freshwater turtle (Testudines: Pleurodira: Chelidae). Journal of Parasitology, 89, 145-150.

Tkach V. V., Snyder S.D. 2003. Acanthostomum macroclemydis n. sp. (Digenea: Cryptogonimidae: Acanthostomidae) from the alligator snapping turtle, Macroclemys temmincki. Journal of Parasitology, 89, 159-167. Cover page

Olson P.D., Cribb T.H., Tkach V.V., Bray R.A., Littlewood D.T.J. 2003. Phylogeny and classification of the Digenea (Platyhelminthes: Trematoda). International Journal for Parasitology, 33, 733-755.

Tkach V. V., Vasileva G. P., Genov T. 2003. Description of Vaucherilepis trichophorus sp. nov, gen. nov. (Cyclophyllidea, Hymenolepididae) from water shrews and gammarid crustaceans in Bulgaria and Ukraine. Acta Parasitologica, 48 (2), 87-97. Cover page

Kuzmin Y., Tkach V.V., Snyder S.D. 2003. The nematode genus Rhabdias (Nematoda: Rhabdiasidae) from amphibians and reptiles of the Nearctic. Comparative Parasitology, 70 (2), 101-114.

Tkach V. V., Littlewood D. T. J., Olson P. D., Kinsella J.M., Swiderski Z. 2003. Molecular phylogenetic analysis of the Microphalloidea Ward, 1901 (Trematoda: Digenea). Systematic Parasitology, 56, 1-15.

Zamparo D., Brooks D.R., Tkach V., Rodriguez B. 2004. Parallopharynx spp. (Trematoda: Digenea: Plagiorchioidea) in Iguanian lizards from the Area de Conservación Guanacaste, Guanacaste, Costa Rica, including P. matternae n. sp. in Basiliscus basiliscus (Squamata: Iguania: Corytophanidae). Journal of Parasitology, 90:359-363.

Vasileva G.P., Vaucher C., Tkach V.V., Genov T. 2004. Taxonomic revision of Hilmylepis Skryabin & Matevosyan, 1942 (Cyclophyllidea: Hymenolepididae). Systematic Parasitology, 59, 45-63.

Vasileva G.P., Tkach V.V., Genov T. 2005. Two new hymenolepid species (Cestoda: Hymenolepididae) from water shrews Neomys fodiens Pennant (Insectivora: Soricidae) in Bulgaria. Acta Parasitologica, 50, 56-64.

Zamparo D., Brooks D.R., Tkach V. 2005. Urotrema shirleyae n. sp. (Trematoda: Digenea: Urotrematidae) in Norops oxylophus and N. cupreus (Squamata: Iguania: Polychrotidae) from the Area de Conservación Guanacaste, Guanacaste, Costa Rica. Journal of Parasitology, 91, 648–652.

Gulyaev V.D., Tkach V.V. 2005. The Structure of the Rostellar Apparatus of Vigisolepis spinulosa (Cestoda, Cyclophyllidea, Hymenolepididae). Vestnik zoologii 39: 51–57 (in Russian with English summary).

Olson, P.D. and Tkach, V.V. 2005. Advances and trends in the molecular systematics of the parasitic Platyhelminthes. Advances in Parasitology 60: 165-243. Cover page

Kuzmin, Y., Tkach, V.V. and Vaughan, J.V. 2005. Rhabdias kongmongthaensis sp.n. (Nematoda: Rhabdiasidae) from Polypedates leucomystax (Amphibia: Anura: Rhacophoridae) in Thailand. Folia Parasitologica 52: 339-342.

Kinsella J.M., Tkach V.V. 2005. Notocotylus fosteri n. sp. (Trematoda: Notocotylidae) from the rice rat, Oryzomys palustris, in Florida. Acta Parasitologica, 50: 194-198.

Snyder S.D., Tkach V.V. 2006. Paradeuterobaris victoriae n. sp. (Digenea: Microscaphidiidae) and Buckarootrema minuta n. sp. (Digenea: Pronocephalidae) from the victoria River Red-Faced turtle, Emydura victoriae (Pleurodira: Chelidae) in Australia. Comparative Parasitology 73: 7-13.

Tkach V.V., Kuzmin Y., Pulis E.E. 2006. A new species of Rhabdias from lungs of the wood frog, Rana sylvatica, in North America: the last sibling of Rhabdias ranae? Journal of Parasitology 92: 631-636.

Tkach, V, V. , Snyder S.D. 2006. Doodytrema carettochelydis n. gen., n. sp. (Digenea: Microscaphidiidae) from the Pig-Nosed Turtle, Carettochelys insculpta (Pleurodira: Chelidae) in Australia", Comparative Parasitology 73: 165-171.

Curran S.S., Tkach V.V., Overstreet R.M. 2006. A review of Polylekithum Arnold, 1934 and its familial affinities using morphological and molecular data, with description of Polylekithum catahoulensis sp. nov. Acta Parasitologica 51: 238-248.

Kuzmin Y., Tkach, V, V., Brooks D.R. 2007. Two new species of Rhabdias (Nematoda: Rhabdiasidae) from the marine toad, Bufo marinus (L.) (Lissamphibia: Anura: Bufonidae), in Central America. Journal of Parasitology 93: 159-165.

Tkach, V, V., Snyder, S. D. 2007. Aptorchis megacetabulus n. sp. (Digenea: Plagiorchioidea) from the Northern Long-Necked Turtle, Chelodina rugosa, (Pleurodira: Chelidae) in Australia. Journal of Parasitology 73: 165–171.

Snyder, S. D., Tkach V.V. 2007. Neosychnocotyle maggiae n. gen, n. sp, (Platyhelminthes: Aspidogastrea) from freshwater turtles in northern Australia. Journal of Parasitology 93: 399-403.

Tkach V.V., Snyder S.D. 2007. Choanocotyle platti n. sp. from the northern long-necked turtle, Chelodina rugosa (Pleurodira: Chelidae) in Australia. Acta Parasitologica 52: 318-324.

Curran S.S., Overstreet R.M., Tkach V.V. 2007. Phylogenetic affinities of Plagiocirrus Van Cleave and Mueller, 1932 with the description of a new species from the Pascagoula River, Mississippi. Journal of Parasitology, 93: 1452-1458.

Tkach V.V., Snyder S.D. 2008. Aptorchis glandularis n. sp. (Digenea: Plagiorchioidea) from the Northwestern red-faced turtle, Emydura australis, (Pleurodira: Chelidae) in the Kimberley, Western Australia. Journal of Parasitology, 94: 918-924.

Blair, D., Tkach V.V. & Barton D.P. 2008. Family Troglotrematidae Odhner, 1914. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 277-289.

Tkach V.V. 2008. Family Choanocotylidae Jue Sue & Platt, 1998. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 339-342.

Tkach V.V. 2008. Family Encyclometridae (Mehra, 1931). In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 349-352.

Tkach V.V. 2008. Family Haematoloechidae Freitas & Lent, 1939. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 361-366.

Tkach V.V. 2008. Family Leptophallidae Dayal, 1938. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 367-371.

Tkach V.V. 2008. Family Mesotretidae Poche, 1936. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 385-386.

Tkach V.V. 2008. Family Thrinascotrematidae Jue Sue & Platt, 1999. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 437-439.

Tkach V.V. 2008. Family Glypthelminthidae Cheng, 1959. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 357-360.

Tkach V.V. 2008. Family Omphalometridae (Looss, 1899). In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 391-399.

Tkach V.V. 2008. Family Opisthogonimidae Travassos, 1928. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 401-405.

Tkach V.V. 2008. Family Plagiorchiidae Lühe, 1901. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 295-325.

Tkach V.V. 2008. Family Reniferidae Pratt, 1902. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 411-419.

Tkach V.V. 2008. Family Styphlotrematidae Baer, 1924. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 421-423.

Tkach V.V. 2008. Genera insertae sedis. In: Keys to the Trematoda. Vol.3. (Eds R.A.Bray, D.I.Gison, A. Jones), CAB International, Cambridge, UK, 736-753.

Tkach V.V., Strand E.J., Froese L. 2008. Macroderoides texanus n. sp. (Digenea: Macroderoididae) from alligator gar, Atractosteus spatula in Texas. Parasitology Research, 94: 27-33.

Kuzmin, Y., Tkach, V.V. 2008. Rhabdias pearsoni sp. n. (Nematoda, Rhabdiasidae) from keelback, Tropidonophis mairii (Reptilia: Colubridae) in Australia. Vestnik Zoologii, 42, 95-100.

Kinsella J.M., Tkach V.V. 2009. Checklist of helminth parasites of Soricomorpha (=Insectivora) of North America north of Mexico. Zootaxa,1969: 36-58.

Snyder S.D. and Tkach V.V. 2009. Haplorchis popelkae n. sp. (Digenea: Heterophyidae) from short-necked turtles (Chelidae) in northern Australia. Journal of Parasitology, 95, 204-207.

Tkach V.V., Snyder S.D. and Vaughan J.A. 2009. A new species of blood fluke (Digenea: Spirorchiidae) from the Malayan box turtle, Cuora amboinensis (Cryptodira: Geomydidae) in Thailand. Journal of Parasitology, 95, 743-746.

Kinsella J.M., Tkach V.V. 2009.Molecular identification of an avian dicrocoeliid, Brachylecithum mosquensis, from a vagrant shrew, Sorex vagrans, in Montana, U.S.A. Comparative Parasitology, 76: 287-289.

de Chambrier A., Coquille S. C., Mariaux J. and Tkach V.V. 2009. Redescription of Testudotaenia testudo (Magath, 1924) (Eucestoda: Proteocephalidea), a parasite of Apalone spinifera (Le Sueur) (Reptilia: Trionychidae) and Amia calva L. (Pisces: Amiidae) in North America and erection of the Testudotaeniinae n. subfam. Systematic Parasitology, 73, 49-64.

Kuzmin, Y., Tkach, V.V., Snyder, S.D., Maier, M.D. 2009. Camallanus tuckeri sp. n. (Nematoda, Camallanidae) from freshwater turtles (Pleurodira: Chelidae), in the Kimberley, Western Australia. Comparative Parasitology, 76: 133-140.

Tkach, V.V., Kuzmin, Y., Snyder, S.D. 2010. Krefftascaris (Nematoda, Ascaridoidea) from Australian side-necked turtles with description of Krefftascaris sharpiloi sp. nov. from Chelodina rugosa, Vestnik Zoologii, 44: 3-13.

Parker J.H., Curran S.S., Overstreet R.M., Tkach V.V. 2010. Examination of Homalometron elongatum Manter, 1947 and description of a new congener from Eucinostomus currani Zahuranec, 1980 in the Pacific Ocean off Costa Rica. Comparative Parasitology 77: 154-163.

Tkach V.V., Bush S.E. 2010. Serpentoanisocladium sinense n. g., n. sp. (Digenea: Cryptogonimidae) from the eastern water snake Sinonatrix percarinata (Boulenger) (Serpentes: Colubridae) in the Guizhou Province, China. Systematic Parasitology 76: 205-210.

Tkach V.V., Pulis E.E., Overstreet R.M. 2010. A new Paramacroderoides (Digenea: Macroderoididae) from two species of gar in the southeastern United States. Journal of Parasitology 96: 1002-1006.

Tkach V.V., Snyder S.D. 2010. Proctocaecum blairi sp. nov. (Digenea, Cryptogonimidae) from the freshwater crocodile, Crocodylus johnstoni, in Northern Territory, Australia. Acta Parasitologica 55: 240-244.

Králová-Hromadová I., Bazsalovicsová E., Štefka J., Špakulová M., Vávrová S., Szemes T., Tkach V., Trudgett A., Pybus M. 2011. Multiple origins of European populations of the giant liver fluke Fascioloides magna (Trematoda: Fasciolidae), a liver parasite of ruminants. International Journal of Parasitology, 41: 373-383.

Kuzmin, Y., Tkach, V.V. 2011. Description of a new species of Kurilonema (Nematoda: Rhabdiasidae) from lungs of the skink Sphenomorphus abdictus aquilonius (Reptilia: Sauria: Scincidae) in the Philippines. Journal of Parasitology 97: 506-512.

Snyder S.D. and Tkach V.V. 2011. Aptorchis kuchlingi n. sp. (Digenea: Plagiorchioidea) from the Oblong Turtle, Chelodina oblonga, (Pleurodira: Chelidae) in Western Australia. Comparative Parasitology,78: 280-285.

Kuzmin, Y., Tkach, V.V., Snyder, S.D., Bell J.A. 2011. Camallanus Railliet & Henry, 1915 (Nematoda, Camallanidae) from Australian freshwater turtles with descriptions of two new species and molecular differentiation of known taxa. Acta Parasitologica 56: 213-226.

Curran S. S., Tkach V.V., Overstreet R.M. 2011. Phylogenetic affinities of Auriculostoma (Digenea: Allocreadiidae), with descriptions of two new species from Peru. Journal of Parasitology, 97: 661-670.

Tkach V.V., Mills A. M. 2011. Alloglossidium fonti sp. nov. (Digenea, Macroderoididae) from black bullheads in Minnesota with molecular differentiation from congeners and resurrection of Alloglossidium kenti. Acta Parasitologica 56: 154-162.

Tkach V.V. 2011. Paraoistosomum novaeguineae n. gen., n. sp. (Digenea) from a New Guinea crocodile: a surprising relative of the enigmatic Oistosomum caduceus Odhner, 1902. Journal of Parasitology 97: 717-720.

Pulis E. E., Tkach V.V., Newman R.A. 2011. Helminth parasites of the wood frog, Lithobates sylvaticus, in prairie pothole wetlands of the northern Great Plains. Wetlands 31: 675-685.

Santoro M., Tkach V.V., Mattiucci S., Kinsella J.M., Nascetti G. 2011. Renifer aniarum (Digenea: Reniferidae), an introduced North American parasite in grass snakes Natrix natrix in Calabria, southern Italy. Diseases of Aquatic Organisms 95: 233-240.

Tkach V.V., Kinsella J.M. 2011. New Macroderoides (Digenea: Macroderoididae) from Florida gar, with molecular phylogeny of the genus. Journal of Parasitology 97: 920-923.

Tkach, V.V., Kuzmin, Y., Brown R. M. 2011. Rhabdias mcguirei sp. nov. (Nematoda, Rhabdiasidae) from the flying lizard, Draco spilopterus (Squamata: Agamidae) of the northern Philippines. Acta Parasitologica 56: 406-411.

Bergmame L., Hyffman J., Cole R., Dayanandan S., Tkach V., McLaughlin J.D. 2011. Sphaeridiotrema globulus and Sphaeridiotrema pseudoglobulus (Digenea): species differentiation based on mtDNA (Barcode) and partial LSU-rDNA sequences. Journal of Parasitology 97: 1132-1136.

Greiman S.E., Tkach V.V. 2012. Description and phylogenetic relationships of Rodentolepis gnoskei n. sp. (Cyclophyllidea: Hymenolepididae) from a shrew Suncus varilla minor in Malawi. Parasitology International 61: 343-350.

McNulty S. N., Fischer K., Mehus J.O., Vaughan J.A., Tkach V.V., Weil G.J., Fischer P.U. 2012. Absence of Wolbachia endobacteria in Chandlerella quiscali, an avian filarial parasite. Journal of Parasitology 98: 382-387.

Ndiaye P.I., Quilichini Y, Sène A., Tkach V.V., Bâ C.T. and Marchand B. 2012. Ultrastructural study of the male gamete of Pleurogonius truncatus Prudhoe, 1944 (Platyhelminthes, Digenea, Pronocephalidae) parasite of Eretmochelys imbricata (Linnaeus, 1766). Comptes Rendus Biologies 336: 239-246.

Vaughan J.A., Tkach V.V., Greiman S.E. 2012. Neorickettsial endosymbionts of the Digenea: diversity, transmission and distribution. Advances in Parasitology 79: 253-297

Kuzmin Y., Tkach V.V., Bush, S.E. 2012. A new species of Rhabdias (Nematoda: Rhabdiasidae) from agamid lizards on Luzon Island, Philippines. Journal of Parasitology 98: 608-611.

McNulty S. N., Mullin A.S., Vaughan J.A., Tkach V.V., Weil G.J., Fischer P.U. 2012. Comparing the mitochondrial genomes of Wolbachia-dependent and independent filarial nematode species. BMC Genomics 2012, 13:145

Tkach V.V., Schroeder J. A., Greiman S.E., Vaughan J.A. 2012. New genetic lineages, host associations and circulation pathways of Neorickettsia endosymbionts of digeneans. Acta Parasitologica 57: 285-292

Ndiaye P.I., Quilichini Y, Sène A., Tkach V.V., Bâ C.T. and Marchand B. 2012. Ultrastructural study of the spermatozoon of the digenean Enodiotrema reductum Looss, 1901 (Platyhelminthes, Plagiorchioidea, Plagiorchiidae), parasite of the green turtle Chelonia mydas (Linnaeus, 1758) in Senegal. Parasitology Research 111: 859-864.

Tkach V.V., Platt T.R., Greiman S.E. 2012. A new species of Opisthioglyphe (Trematoda: Telorchiidae) from gall bladder of turtles in Malaysia. Journal of Parasitology 98: 863-868

Lisitsyna O. I., Tkach V.V., Bush S.E. 2012. New records of acanthocephalans from birds in the Philippines with a description of a new Porrorchis and identification keys for the genus. Journal of Parasitology 98: 1176-1184.

Church M. L., Barrett P.M., Swenson J., Kinsella J.M., Tkach V.V. 2013. Outbreak of Philophthalmus gralli in four greater rheas (Rhea americana). Veterinary Ophthalmology 16: 65-72.

Makarikov A.A., Tkach V.V. 2013. Two new species of Hymenolepis (Cestoda: Hymenolepididae) from Spalacidae and Muridae (Rodentia) from eastern Palearctic. Acta Parasitologica 58: 37-49.

Curran S.S., Tkach V.V., Overstreet R.M. 2013. A new species of Homalometron (Digenea: Apocreadiidae) from fishes in the northern Gulf of Mexico. Journal of Parasitology 99: 93-101.

Jayawardena U.A., Tkach V.V., Navaratne A.N., Amerasinghe P.H.and Rajakaruna R.S. 2013. Malformations and mortality in the Asian Common Toad induced by exposure to pleurolophocercous cercariae (Trematoda: Cryptogonimidae). Parasitology International 62: 246-252.

Tkach V.V., Lisitsyna O.I., Crossley J.L., Tran Thi Binh, Bush S.E. 2013. Morphological and molecular differentiation of two new species of Pseudoacanthocephalus Petrochenko, 1958 (Acanthocephala: Echinorhynchidae) from amphibians and reptiles in the Philippines, with identification keys for the genus. Systematic Parasitology 85:11–26. Cover page

Tkach V.V., A.A. Makarikov, J.M. Kinsella. 2013. Morphological and molecular differentiation of Staphylocystis clydesengeri n. sp. (Cestoda, Hymenolepididae) from the vagrant shrew Sorex vagrans (Soricimorpha, Soricidae) in North America. Zootaxa, 3691 (3): 389–400.

Dronen N.O., Tkach V.V. 2013. Description of a new species of Uvitellina Witenberg, 1923 (Cyclocoelidae: Haematotrephinae), from the black-winged stilt, Himantopus himantopus (Charadriiformes: Recurvirostidae) from the Ukraine. Comparative Parasitology 80: 179-185.

Curran S.S., Tkach V.V., Overstreet R.M. 2013. Molecular evidence for two cryptic species of Homalometron (Digenea: Apocreadiidae) in freshwater fishes of the southeastern United States. Comparative Parasitology 80: 186-195.

Kuzmin Y., Kinsella J.M., Tkach V.V., Bush S.E. 2013. New species of Kalicephalus (Nematoda: Diaphanocephalidae) from a snake, Oxyrhabdium leporinum, on Luzon Island, Philippines. Comparative Parasitology 80: 240-246.

Gustafson K. D., Newman R.A. and Tkach V.V. 2013. Effects of host species and life stage on the helminth communities of sympatric Northern leopard frogs (Lithobates pipiens) and Wood frogs (Lithobates sylvaticus) in the Sheyenne National Grasslands, North Dakota. Journal of Parasitology 99: 587-594.

Tkach V., Swiderski Z., Mlocicki D. 2013. Egg ultrastructure of the amabiliid cestode Tatria biremis Kowalewski, 1904 (Cyclophyllidea, Amabiliidae), with an emphasis on the oncospheral envelopes. Acta Parasitologica 58: 269-277.

Ndiaye P.I., Quilichini Y, Tkach V.V., Greiman S.E., Bâ C.T. and Marchand B. 2013. Ultrastructure of the spermatozoon of the digenean Plagiorchis elegans (Rudolphi, 1802) (Plagiorchioidea, Plagiorchiidae). Journal of Morphology 274: 965-972.

Kuzmina T. A., Kuzmin Y. I., Tkach V. V., Spraker T. R., Lyons E. T. 2013. Ecological, morphological, and molecular studies of Acanthocheilonema odendhali (Nematoda: Filarioidea) in northern fur seals (Callorhinus ursinus) on St. Paul Island, Alaska. Parasitology Research 112: 3091-3100.

Makarikov A.A., Tkach V.V., Bush S. E. 2013. Two new species of Hymenolepis (Cestoda: Hymenolepididae) from murid rodents (Rodentia: Muridae) in the Philippines. Journal of Parasitology 99: 847-855.

Greiman S.E., Tkach V.V., Vaughan J.A. 2013. Transmission rates of the bacterial endosymbiont, Neorickettsia risticii, during the asexual reproduction phase of its digenean host, Plagiorchis elegans, within naturally infected lymnaeid snails. Parasites and Vectors 6: 303.

Tkach V.V., Greiman S.E., Steffes K.R. 2013. Alloglossidium demshini sp. nov. (Digenea: Macroderoididae) from leeches in Minnesota. Acta Parasitologica 58: 434-440.

Greiman S.E., Tkach V.V., Cook J. A. 2013. Description and molecular differentiation of a new Staphylocystoides (Cyclophyllidea: Hymenolepididae) from the dusky shrew Sorex monticolus in Southeast Alaska. Journal of Parasitology 99: 1045-1049.

Tkach V.V., Curran S.S., Bell J.A., Overstreet R.M. 2013. A new species of Crepidostomum (Digenea: Allocreadiidae) from Hiodon tergisus in Mississippi, and molecular comparison with three congeners. Journal of Parasitology 99: 1114-1121.

Tkach, V.V., Halajian, A., Kuzmin, Y. 2014. Phylogenetic affinities and systematic position of Entomelas sylvestris Baker, 1982 (Nematoda: Rhabdiasidae), a parasite of Breviceps sylvestris FitzSimons (Amphibia: Brevicipitidae) in South Africa. Systematic Parasitology 87: 293-298.

Greani S., Quilichini Y., Foata J., Greiman S.E., Ndiaye P.I., Tkach V.V., Marchand B. 2014. Vitellogenesis of the digenean Plagiorchis elegans (Rudolphi, 1802) (Plagiorchioidea, Plagiorchiidae). Parasitology International 63: 537-543.

Tkach, V.V., Kuzmin, Y., Snyder, S.D. 2014. Molecular insight into systematics, host associations, life cycles and geographic distribution of the nematode family Rhabdiasidae. International Journal for Parasitology 44:273–284.

Greiman S. E., Tkach V.V., Pulis E., Fayton T.J., Curran S.S. 2014. Large scale screening of digeneans for Neorickettsia endosymbionts using real-time PCR reveals new Neorickettsia genotypes, host associations and geographic records. PLOS ONE 9 (issue 6, June 2014): e98453

Dronen N.O., Tkach V.V. 2014. Key to the species of Morishitium Wienberg, 1928 (Cyclocoelidae), with the description of a new species from the red-billed blue magpie, Urocissa erythrorhyncha (Boddaert) (Corvidae) from Guizhou Province, People’s Republic of China. Zootaxa, 3835 (2): 273-282.

Gibson D.I., Bray R.A., Hunt D., Georgiev B.B., Scholz T., Harris P.D., Bakke T.A., Pojmanska T., Niewiadomska K., Kostadinova A., Tkach V., Bain O., Durette-Desset M.-C., Gibbons L., Moravec F., Petter A., Dimitrova Z.M., Buchmann K., Valtonen E.T., de Jong Y. 2014. Fauna Europaea: Helminths (Animal Parasitic). Biodiversity Data Journal 2: e1060

Ndiaye P.I., Quilichini Y, Sène A., Tkach V.V., Bâ C.T. and Marchand B. 2014. Ultrastructural characters of the spermatozoa in Digeneans of the genus Lecithochirium Luhe, 1901 (Digenea, Hemiuridae), parasites of fishes: comparative study of L. microstomum and L. musculus. Parasite, 2014, 21, 49. (12 pages)

Kanarek G., Zalesny G., Sitko J., Tkach V.V. 2014. Phylogenetic relationships and systematic position of the families Cortrematidae and Phaneropsolidae (Platyhelminthes: Digenea). Folia Parasitologica, 61: 523-528.

Makarikov A.A., Tkach V.V., Villa S.M., Bush S. E. 2015. Description of two new species of Hymenolepis Weinland, 1858 (Cestoda, Hymenolepididae) from rodents on the Luzon Island, Philippines. Systematic Parasitology 90: 27-37.

Tkach V.V., Curran S.S. 2015. Prosthenystera oonastica n. sp. (Digenea: Callodistomidae) from ictalurid catfishes in southeastern United States and molecular evidence differentiating species in the genus across Americas. Systematic Parasitology 90: 39–51.

Kudlai O., Tkach V.V., Pulis E.E. and Kostadinova A. 2015. Redescription and phylogenetic relationships of Euparyphium capitaneum Dietz, 1909, the type-species of Euparyphium Dietz, 1909 (Digenea: Echinostomatidae). Systematic Parasitology 90: 53–65.

Binkiene R., Kornienko S.A., Tkach V.V. 2015. Soricinia genovi n. sp. from Neomys fodiens in Bulgaria, with redescription of Soricinia globosa (Baer, 1931) (Cyclophyllidea: Hymenolepididae). Parasitology Research 114: 209-218.

Kudlai O., Kostadinova A., Pulis E.E.,Tkach V.V. 2015. A new species of Drepanocephalus Dietz, 1909 (Digenea: Echinostomatidae) from the double-crested cormorant Phalacrocorax auritus (Lesson) (Aves: Phalacrocoracidae) in North America. Systematic Parasitology 90: 221-230.

Lutz H.L., Hochachka W.M., Engel J.I., Bell J.A., Tkach V.V., Bates J.M., Hackett S.J., Weckstein J.D. 2015. Parasite prevalence corresponds to host life history in a diverse assemblage of Afrotropical birds and haemosporidian parasites. PLOS ONE 10.1371/journal.pone.0121254

Kudlai O., Stunzenas V., Tkach V. 2015. The taxonomic identity and phylogenetic relationships of Cercaria pugnax and Cercaria helvetica XII (Digenea: Lecithodendriidae) based on morphological and molecular data. Folia Parasitologica 62: 003

Harris P., Zalesny G., Hildebrand J., Paziewska-Harris A., Behnke J., Tkach V.V., Hwang, Y.-T. & Kinsella J.M. 2015. The status of Heligmosomoides americanus, representative of an American clade of vole-infecting nematodes. Journal of Parasitology 101:382-385.

Hildebrand J., Pulis E.E., Tkach V.V. 2015. Redescription and phylogenetic relationships of the rare Lyperosomum sarothrurae Baer, 1959 (Digenea: Dicrocoeliidae). Acta Parasitologica 60: 371–377.

Makarikov A.A., Mel'nikova Y.A., Tkach V.V. 2015.Description and phylogenetic affinities of two new species of Nomadolepis (Eucestoda, Hymenolepididae) from Eastern Palearctic. Parasitology International 54: 453-463.

Bell J.A., Weckstein J.D., Fecchio A., Tkach V.V. 2015. A new real-time PCR protocol for detection of avian haemosporidians. Parasites and Vectors 8: 383 (9 pages).

Greiman S.E., Tkach M., Vaughan J.A., Tkach V.V. 2015. Laboratory maintenance of the bacterial endosymbiont, Neorickettsia sp., through the life cycle of a digenean, Plagiorchis elegans. Experimental Parasitology 157: 78-83.

Patitucci K.F., Kudlai O., Tkach V.V. 2015. Nephromonorcha varitestis n. sp. (Digenea: Renicolidae) from the American white pelican, Pelecanus erythrorhynchos in North Dakota, U.S.A. Comparative Parasitology 82: 254-261.

Quilichini Y., Ndiaye P.I., Sene A., Justine J.-L., Bray R.A., Tkach V.V., Ba C.T., Marchand B. 2015. Ultrastructural characters of the spermatozoa in digeneans of the genus Bianium Stunkard, 1930 (Digenea, Lepocreadiidae) parasites of fishes: a comparative study of B. plicitum and B. arabicum. Parasitology Research 114: 3747-3757.

Uhrig E.J., Spagnoli S.T., Tkach V.V., Kent M.L., Mason R.T. 2015. Alaria mesocercariae in the tails of red-sided garter snakes: evidence for parasite-mediated caudectomy. Parasitology Research 114: 4451-4461.

Tkach V.V., Kudlai O., Kostadinova A. 2016. Molecular phylogeny and systematics of the Echinostomatoidea Looss, 1899 (Platyhelminthes: Digenea). International Journal for Parasitology 46: 171-185.

Greiman S.E., Rikihisa Y., Cain J., Vaughan J.A., Tkach V.V. 2016. Germs within worms: localization of Neorickettsia sp. within life cycle stages of the digenean Plagiorchis elegans. Applied and Environmental Microbiology 82: 2356–2362.

Patitucci K.F., Bates J.M., Tkach V.V. 2016. Mosesia ovalis n. sp. (Digenea: Phaneropsolidae) from the green manakin Xenopipo holochlora from Peruvian Amazon with notes on morphology of Mosesia mosesi Travassos, 1921. Comparative Parasitology 83: 49-53.

Kudlai O., Pulis E.E., Kostadinova A., Tkach V.V. 2016. Neopsilotrema n. g. (Digenea: Psilostomidae) and three new species from ducks (Anseriformes: Anatidae) in North America and Europe. Systematic Parasitology 93: 307-319.

Kornienko S.A., Binkiene R., Tkach V.V. 2016. Revision of the genus Soricinia Spassky & Spasskaja, 1954 (Cestoda: Cyclophyllidea: Hymenolepididae) with redescriptions of three species, an amended generic diagnosis and an identification key to species. Systematic Parasitology 93: 451–465.

Cook J.A., McLean B.S., Jackson D.J., Colella J.P., Greiman S.E., Tkach V.V., Jung T.S., Dunnum J.L. 2016. First record of the Holarctic least shrew (Sorex minutissimus) and associated helminths from Canada: new light on northern Pleistocene refugia. Canadian Journal of Zoology 94: 367-372.

Greiman S.E., Tkach V.V. 2016. The numbers game: quantitative analysis of Neorickettsia sp. propagation through complex life cycle of its digenean host using realtime qPCR. Parasitology Research 115: 2779-2788.

Greiman S.E., Kent M. L., Betts J., Cochell D., Sigler T., Tkach V.V. 2016. Nanophyetus salmincola, vector of the salmon poisoning disease agent Neorickettsia helminthoeca, harbors a second pathogenic Neorickettsia species. Veterinary Parasitology 229: 107-109.

Hoberg E.P., Makarikov A.A., Tkach V.V., Meagher S., Nims T.N., Eckerlin R.P., Galbreath K.E. 2016. Insights on the host associations and geographic distribution of Hymenolepis folkertsi (Cestoda: Hymenolepididae) among rodents across temperate latitudes of North America. Parasitology Research 115: 4627-4638.

Hope A.G., Greiman S.E., Tkach V.V., Hoberg E.P., Cook J.A. 2016. Shrews and their parasites: small species indicate big changes. [in Arctic Report Card 2016],

Cook J.A., Greiman S.E., Agosta S.J., Anderson R.P. Arbogast B.S.. Baker R.J., Boeger W., Bradley R.D., Brooks D.R., Cole R., Demboski J.R., Dobson A.P., Dunnum J.L., Eckerlin R.P. Esselstyn J., Galbreath K., Hawdon J., Hoekstra H.E., Kutz S.J., Light J.E. Olson L.E., Patterson B.D., Patton J.L., Phillips A.J., Rickart E., Rogers D.S., Siddall M.E., Tkach V.V., Hoberg E.P. 2016. Transformational principles for NEON sampling of mammalian parasites and pathogens: a response to Springer and colleagues. Bioscience,66: 917-919.

Tkach V.V., Greiman S.E. 2016. Transmission biology, host associations, distribution and molecular diagnostics of Neorickettsia. In: Rickettsiales Biology, Molecular Biology, Epidemiology, and Vaccine Development (S. Thomas, Ed.). Springer, 295-325. SBN 978-3-319-46857-0; ISBN 978-3-319-46859-4 (eBook).

Greiman S.E., Vaughan J.A., Elmahy R., Adisakwattana P., Nguyen V.H., Fayton T.J., Khalil A., Tkach V.V. 2017. Real-time PCR detection and phylogenetic relationships of Neorickettsia spp. in digeneans from Egypt, Philippines, Thailand, Vietnam and the United States. Parasitology International 66: 1003-1007.

Kudlai O., Kostadinova A., Pulis E.E., Tkach V.V. 2017. The Psilostomidae Looss, 1900 (sensu stricto) (Digenea: Echinostomatoidea): description of three new genera and a key to the genera of the family. Systematic Parasitology 94: 21-33.

Ndiaye P.I., Quilichini Y, Marigo A.M., Bâ C.T., Tkach V.V. and Marchand B. 2017. Ultrastructural characteristics of the mature spermatozoon of the digenean Sclerodistomum italicum (Stossich, 1893) (Hemiuroidea, Sclerodistomidae), intestinal parasite of Hypocanthus amia (Teleostei, Carangidae). Tissue and Cell 49: 15-21.

Fischer K., Tkach V.V., Curtis K.C., Fischer P. 2017. Ultrastructure and localization of Neorickettsia in adult digenean trematodes provides novel insights into helminth-endobacteria interaction. Parasites & Vectors, 10:177. DOI 10.1186/s13071-017-2123-7.

Kanarek G., Zalesny G., Sitko J., Tkach V.V. 2017. The systematic position and structure of the genus Leyogonimus Ginetsinskaya, 1948 (Platyhelminthes: Digenea) with comments on the taxonomy of the superfamily Microphalloidea Ward, 1901. Acta Parasitologica 62:617-624.

Fecchio A., Ellis V.A., Bell J., Andretti C.B., d'Horta F.M., Silva A.M., Tkach V.V., Weckstein, J.D. 2017. Avian malaria, ecological host traits and mosquito abundance in southeastern Amazonia. Parasitology 144: 1117-1132.

Voronova A.N., Chelomina G.N., Besprozvannykh V.V., Tkach V.V. 2017. Genetic divergence of human pathogens Nanophyetus spp. (Trematoda: Troglotrematidae) on the opposite sides of the Pacific Rim. Parasitology 144: 601-612.

Fecchio A., Svensson-Coelho M., Bell J., Ellis V.A., Medeiros M.C., Trisos C.H., Blake J.G., Loiselle B.A., Tobias J.A., Fanti R., Coffey E.D., de Faria I.P., Pinho J.B., Felix G., Braga E.M., Anciães M., Tkach V.V., Bates J., Witt C., Weckstein J.D., Ricklefs R.E., Farias I.P. 2017. Host associations and turnover of haemosporidian parasites in manakins (Aves: Pipridae). Parasitology 144: 984-993.

Kendall B.A., Tkach V.V., Gutierrez Y., Longino J.T., Couturier M.R. 2017. Photo Quiz: Motile structures in the stool of a field biologist. Journal of Clinical Microbiology 55: 2293. (cover page)

Caira J.N., Jensen K., Georgiev B.B., Kuchta R., Littlewood D.T.J., Mariaux J., Scholz T., Tkach V.V., Waeschenbach A. 2017. An overview of tapeworms from vertebrate bowels of the earth. In: Caira, J. N. and K. Jensen (eds). Planetary Biodiversity Inventory (2008-2017): Tapeworms from the vertebrate bowels of the earth. University of Kansas, Natural History Museum, Special Publication No. 25, Lawrence, KS, USA, 1-20.

Mariaux J., Tkach V.V., Vasileva G.P., Waeschenbach A., Beveridge I., Dimitrova Y., Haukisalmi V., Greiman S. E., Littlewood D. T. J., Makarikov A.A., Phillips A.J., Razafiarisolo T., Widmer V., Georgiev B. B. 2017. Cyclophyllidea. In: Caira, J. N. and K. Jensen (eds). Planetary Biodiversity Inventory (2008-2017): Tapeworms from the vertebrate bowels of the earth. University of Kansas, Natural History Museum, Special Publication No. 25, Lawrence, KS, USA, 77-148.

Lutz, H. L., Tkach, V. V., Weckstein, J. D. 2017. Methods for specimen-based studies of avian symbionts. In: M. Webster (ed.) The Role of Collections in Ornithology: The Extended Specimen. Studies in Avian Biology. CRC Press, Boca Raton, FL, 127-183.

Cook J.A., Galbreath K.E., Bell K.C., Campbell Mariel L., Carrière S., Colella J. P., Dawson N. G., Dunnum J. L., Eckerlin R. P., Greiman S. E., Fedorov V., Haas G. M. S., Haukisalmi V., Henttonen H., Hope A. G., Jackson D., Jung T., Koehler A. V., Kinsella J. M., Krejsa D., Kutz S. J., Liphardt S., MacDonald S. O., Malaney J. L., Makarikov A., Martin J., McLean B. S., Mulders R., Nyamsuren B., Talbot S. L., Tkach V.V. Tsvetkova A., Toman H. M., Waltari E. C., Whitman J. S., Hoberg E. P. 2017. The Beringian Coevolution Project: holistic collections of mammals and associated parasites reveal novel perspectives on evolutionary and environmental change in the North. Arctic Science 3: 585-617.

Kuzmin, Y., Halajian, A., Tavakol S., Luus-Powell W.J., Tkach, V.V. 2017. Description and phylogenetic position of a new species of Rhabdias Stiles et Hassall, 1905 (Nematoda: Rhabdiasidae) from the Banded Rubber Frog, Phrynomantis bifasciatus (Smith) (Amphibia: Microhylidae), in South Africa. Folia Parasitologica 64: 035. doi: 10.14411/fp.2017.035

Tkach V.V. 2017. Acceptance of the 2017 Henry Baldwin Ward Medal — Parasites, people and continents: an unexpected journey. Journal of Parasitology 103: 616-621.

Makarikov A. A., Stakheev V. V., Tkach V. V. 2018. Phylogenetic relationships of the genus Armadolepis Spassky, 1954 (Eucestoda, Hymenolepididae), with descriptions of two new species from Palaearctic dormice (Rodentia, Gliridae). Systematic Parasitology 95: 65–79.

Fecchio A., Pinheiro R., Bell J. A., Felix G., Faria I. P., Pinho J. B., E. Braga M., Farias I. P., Aleixo A., Tkach V. V., Collins M. D., Weckstein J. D. 2018. Host community similarity and geography shape the diversity and distribution of haemosporidian parasites in Amazonian birds. Ecography 41: 505-515. Cover page

Kuzmina T. A., Tkach V. V., Spraker T. R., Lyons E. T., Kudlai O. 2018. Digeneans of northern fur seals Callorhinus ursinus (Pinnipedia: Otariidae) from five subpopulations on St. Paul Island, Alaska. Parasitology Research 117: 1079–1086.

Tkach V.V., Kinsella J.M., Greiman S.E. 2018. Two new species of Staphylocystoides Yamaguti, 1959 (Cyclophyllidea: Hymenolepididae) from the Masked Shrew Sorex cinereus in North America. Journal of Parasitology,104: 157–167. doi: 10.1645/17-151

Fecchio A., Silveira P., Weckstein J. D., Dispoto J., Anciães M., Bosholn M., Tkach V. V., Bell J. A. 2018. First Record of Leucocytozoon (Haemosporida: Leucocytozoidae) in Amazonia: evidence for rarity in Neotropical lowlands or lack of sampling for this parasite genus? Journal of Parasitology 104: 168–172. doi: 10.1645/17-182

Tkach V.V., Achatz T.J., Hildebrand J., Greiman S.E. 2018. Convoluted history and confusing morphology: molecular phylogenetic analysis of dicrocoeliids reveals true systematic position of the Anenterotrematidae Yamaguti, 1958 (Platyhelminthes, Digenea). Parasitology International 67: 501-508.

Achatz T.J., Cardenas-Callirgos J.M., Tkach V.V. 2018. New Anenterotrema Stunkard, 1938 (Digenea: Anenterotrematidae) from Silky Short-tailed Bat, Carollia brevicauda Schinz, 1821 in Peru. Comparative Parasitology 85: 78-82.

Bell J.A., Gonzalez-Acuna D., Tkach V.V. 2018. First record of Gyrabascus (Digenea, Pleurogenidae) from Dromiciops bozinovici D'Elia et al., 2016 (Marsupialia: Microbiotheriidae) in Chile and its phylogenetic relationships. Comparative Parasitology, 85: 58-65.

McAllister C. T., Tkach V.V., Conn D. B. 2018. Morphological and molecular characterization of post-larval pre-tetrathyridia of Mesocestoides sp. (Cestoda: Cyclophyllidea) from ground skink, Scincella lateralis (Sauria: Scincidae), from southeastern Oklahoma, USA. Journal of Parasitology 104: 246-253. doi: 10.1645/17-178.

Johnson P., Calhoun D., Stokes A., Susbilla C., McDevitt-Galles T., Briggs, C., Hoverman J., Tkach V., de Roode J. 2018. Of poisons and parasites: the defensive role of tetrodotoxin against infections in newts. Journal of Animal Ecology 87: 1192-1204. doi:

Kubecka B. W., Traub N. J., Tkach V. V., Shirley T. R., Rollins D., Fedynich A. 2018. First occurrence of Mesocestoides sp. in wild North American birds—Northern bobwhite (Colinus virginianus) and Scaled quail (Callipepla squamata). Journal of Wildlife Diseases 54: 612-616. DOI: 10.7589/2017-11-275

Gustafson K. D., Newman R.A., Rhen T., Tkach V.V. 2018. Spatial and genetic structure of directly-transmitted parasites reflects the distribution of their specific amphibian
hosts. Population Ecology 60: 261–273.

Pinto H.A., Pulido-Murillo E.A., Braga R.R., Mati V.L.T., Melo A.L., Tkach, V.V. 2018. DNA sequences confirm low specificity to definitive host and wide distribution of the cat pathogen Platynosomum illiciens (=P. fastosum) (Trematoda: Dicrocoeliidae). Parasitology Research 117: 1975–1978.

Fecchio A., Bell J.A., Collins M.D., Farias I.P., Trisos C.H., Tobias J.A., Tkach V.V., Weckstein J.D., Ricklefs R.E., Batalha-Filho H. 2018. Diversification by host-switching and dispersal shaped the diversity and distribution of avian malaria parasites in Amazonia. Oikos 127: 1231-1397. doi: 10.1111/oik.05115. Editor's choice

Machado S.A., Kuzmin Y., Tkach V.V., dos Santos J.N., Conçalves E.C., Melo F. T. V. 2018. Description, biology and molecular characterisation of Serpentirhabdias moi n. sp. (Nematoda: Rhabdiasidae) from Chironius exoletus (Serpentes: Colubridae) in Brazil. Parasitology International 67: 829–837.

Greiman S.E., Cook J.A., Tkach V.V., Hoberg E.P., Menning D.M., Hope A.G., Sonsthagend S.A., Talbot S.L. 2018. Museum metabarcoding: a novel method revealing gut helminth communities of small mammals across space and time. International Journal for Parasitology 48: 1061–1070.

Lisitsyna O.I., Kudlai O., Spraker T.R., Tkach V.V., Smales L.R., Kuzmina T.A. 2019. Morphological and molecular evidence for synonymy of Corynosoma obtuscens Lincicome, 1943 with Corynosoma australe Johnston, 1937 (Acanthocephala: Polymorphidae). Systematic Parasitology 96: 95-110.

Fecchio A., Wells K., Bell J.A., Tkach V.V., Lutz H.L., Weckstein J.D., Clegg S.M., Clarck N.J. 2019. Climate variation influences host specificity in avian malaria parasites. Ecology Letters 22: 547–557. doi: 10.1111/ele.13215

Tkach V.V., Greiman S.E., Pulis E.E., Brooks D.R., Carrion-Bonilla C. 2019. Phylogenetic relationships and systematic position of the enigmatic Urotrema Braun, 1900 (Platyhelminthes: Digenea). Parasitology International 70: 118-122.

Hildebrand J., Pyrka E., Sitko J., Jezewski W., Zalesny G., Tkach V.V., Laskowski Z. 2019. Molecular phylogeny provides new insights on the taxonomy and composition of Lyperosomum Looss, 1899 (Digenea, Dicrocoeliidae) and related genera. International Journal for Parasitology: Parasites and Wildlife 9: 90-99.

Suleman, Ma J., Khan M.S., Tkach V.V., Muhammad N., Zhang D., Zhu X.-Q. 2019. Characterization of the complete mitochondrial genome of Plagiorchis maculosus (Digenea, Plagiorchiidae): representative of a taxonomically complex digenean family. Parasitology International 71: 99–105.

Galbreath K.E., Hoberg E.P, Cook J.A., Bell K.C., Campbell M.L., Dunnum J.L., Dursahinhan A.T., Eckerlin R.P., Gardner S.L., Greiman S.E., Henttonen H.F., Jiménez A., Koehler A.V.A., Nyamsuren B., Tkach V.V.,Torres-Pérez F., Tsvetkova A.,Hope A.G. 2019. Building an integrated infrastructure for exploring biodiversity: field collections and archives of mammals and parasites. Journal of Mammalogy 100: 382-393.

Fecchio A., Bell J.A., Pinheiro R.B.P., Cueto R.B., Gorosito C.A., Lutz H.L., Gaiotti M.G., Paiva L.V., França L.F., Toledo-Lima G., Tolentino M., Pinho J., Tkach V.V., Fontana C.S., Grande J.M., Santillán M.A., Caparroz R., Roos A.L., Bessa R., Nogueira W., Moura T., Nolasco E.C., Comiche K.J.M., Kirchgatter K., Guimarães L.O., Dispoto J.H., Marini M.Â., Weckstein J.D., Batalha-Filho H., Collins M.D. 2019. Avian host composition, local speciation, and dispersal drive the regional assembly of avian malaria parasites in South American birds. Molecular Ecology 28:2681–2693.

Achatz T.J., Pulis E.E., Junker K., Binh T.T., Snyder S. D., Tkach V.V. 2019. Molecular phylogeny of the Cyathocotylidae (Digenea, Diplostomoidea) necessitates systematic changes and reveals a history of host and environment switches. Zoologica Scripta 48: 545-556.

Bullard S. A., Roberts J. R., Warren M. B., Dutton H. R., Whelan N. V., Ruiz C. F., Platt T. R., Tkach V. V., Brant S. V., Halanych K. M. 2019. Neotropical turtle blood flukes: two new genera and species from the Amazon river basin with a key to genera and comments on a marine-derived parasite lineage in South America. Journal of Parasitology 105: 497–523. DOI: 10.1645/19-27

Hildebrand J., Tkach V.V. 2019. Description and phylogenetic relationships of Pojmanskatrema balcanica n. gen., n. sp. (Digenea: Dicrocoeliidae) from the Eurasian water shrew Neomys fodiens (Mammalia: Soricidae) in Bulgaria. Acta Parasitologica 64: 282–287.

Tkach V.V., Hope A.G., Greiman S.E. 2019. Method for the rapid fixation of gastrointestinal helminths in small mammals. Acta Parasitologica 64: 406–410

Kornienko S.A., Binkiene R., Dokuchaev N.A., Tkach V.V. 2019. Molecular phylogeny and systematics of cestodes with rudimentary rostellum (Cestoda: Hymenolepididae) from Holarctic Sorex shews (Eulipotyphla: Soricidae). Zoological Journal of the Linnean Society 187: 965-986.

Kohl Z.F., Calhoun D.M., Elmer F., Peachey R.B.J., Leslie K.L., Tkach V.V., Kinsella J.M., Johnson P.T.J. 2019. Black-spot syndrome in Caribbean fishes linked to trematode parasite infection (Scaphanocephalus expansus). Coral Reefs 38: 917-930.

Achatz T.J., Curran S.S., Patitucci K.F., Fecchio A., Tkach V.V. 2019. Phylogenetic affinities of Uvulifer spp. (Digenea: Diplostomidae) in the Americas with description of two new species from Peruvian Amazon. Journal of Parasitology 105: 704-717.

Achatz T.J., Pulis E. E., Fecchio A., Schlosser I.J., Tkach V.V. 2019. Phylogenetic relationships, expanded diversity and distribution of Crassiphiala (Digenea, Diplostomidae), agents of black spot disease in fish. Parasitology Research 118: 2781-2787.

McAllister C. T., Kinsella J.M, Tkach V.V. 2019. Helminth Parasites (Trematoda, Cestoda,
Nematoda) of Select Mammals (Didelphimorpha, Chiroptera, Carnivora) from McCurtain County, Oklahoma. Proceedings of the Oklahoma Academy of Sciences 99: 64 - 69.

Achatz T.J., Dmytrieva I., Kuzmin Y., Tkach V.V. 2019. Phylogenetic position of Codonocephalus (Digenea, Diplostomoidea), an unusual diplostomid with progenetic metacercariae. Journal of Parasitology 105: 821-826.

McAllister C. T., Durden L.A., Bursey C.R., Hnida J.A., Tkach V.V., Achatz T.J. 2019. Helminth Parasites (Trematoda, Cestoda, Nematoda) of Select Mammals (Didelphimorpha, Chiroptera, Carnivora) from McCurtain County, Oklahoma. Journal of the Arkansas Academy of Science, Parasites (Trematoda, Nematoda, Phthiraptera) of Two Arkansas Raptors (Accipitriformes: Accipitridae; Strigiformes: Strigidae)," Journal of the Arkansas Academy of Science: Vol. 73 , Article 16, 79-82.

Weinstein S.B., Van Wert J.C, Kinsella M., Tkach V.V., Lafferty K.D. 2019. Southern California and Range-Wide Raccoon Gastrointestinal Helminths. Ecology 100(9), e02807.

Weinstein S.B., Van Wert J.C, Kinsella M., Tkach V.V., Lafferty K.D. 2019. Infection at an ecotone: cross-system foraging increases satellite parasites but decreases core parasites in raccoons. Ecology 100 (9), e02808.

Nowak R.M., Jastrzebski J.P., Kusmirek W., Salamatin R., Rydzanicz M., Sobczyk-Kopciol A., Sulima-Celinska A., Pakuszto L., Makowczenko K., Ploski R., Tkach V.V., Basalaj K., Mlocicki D. 2019. Hybrid de novo whole-genome assembly and annotation of the model tapeworm Hymenolepis diminuta. Scientific Data 6, 302. doi:10.1038/s41597-019-0311-3

Suleman, Khan M.S., Tkach V.V., Muhammad N., Zhang D., Zhu X.-Q., Ma J. 2020. Molecular phylogenetics and mitogenomics of three avian dicrocoeliids (Digenea: Dicrocoeliidae) and comparison with mammalian dicrocoeliids. Parasites and Vectors 13:74 or

Calhoun D., Leslie K. L., Riepe T.B., Achatz T. J., McDevitt-Galles T., Tkach V., Johnson P. T. J. 2020. Patterns of Clinostomum marginatum infection in fishes and amphibians: integration of field, genetic, and experimental approaches. Journal of Helminthology 94: e44.

Hope A.G., Stephens R.B., Mueller S.D., Tkach V.V., Demboski J.R. 2020. Speciation of North American pygmy shrews (Eulipotyphla: Soricidae) supports spatial but not temporal congruence of diversification among boreal species. Biological Journal of the Linnean Society 129: 41–60.

Willkens Y., Rebelo G.L., dos Santos J.N., Furtado A.P., do Val Vilela R., Tkach V.V., Kuzmin Y., Melo F. T. V. 2020. Rhabdias glaurungi sp. nov. (Nematoda: Rhabdiasidae), parasite of Scinax gr. ruber (Laurenti, 1768) (Anura: Hylidae) from Brazilian Amazon. Journal of Helminthology 94: e54.

Kuzmin Y., Tkach V.V., Melo F. T. V. Description, molecular characterisation and life cycle of Serpentirhabdias mussuranae n. sp. (Nematoda: Rhabdiasidae) from Clelia clelia (Reptilia: Colubroidea) in Brazil. 2020. Journal of Helminthology 94: e55.

Fecchio A., Bell J.A., Bosholn M., Vaughan J.A., Tkach V.V., Lutz H.L., Cueto V.R., Gorosito C.A., González-Acuña D., Stromlund C., Kvasager D., Comiche K.J.M., Kirchgatter K., Pinho J.B., Berv J., Anciães M., Fontana C.S., Zyskowski K., Sampaio S., Dispoto J.H., Galen S.C., Weckstein J.D., Clark N.J. 2020. An inverse latitudinal gradient in infection probability and phylogenetic diversity for Leucocytozoon blood parasites in New World birds. Journal of Animal Ecology 89:423-435.

Bell J.A., González-Acuña D., Tkach V.V. 2020. Haemosporidian parasites of Chilean ducks: the importance of biogeography and non-passerine hosts. Journal of Parasitology 106: 211–220.

Markle D.F., Janik A., Peterson J.T., Choudhury A., Simon D.C., Tkach V.V., Terwilliger M.R., Sanders J.L., Kent M.L. 2020. Odds ratios and hurdle models: a long-term analysis of parasite infection patterns in endangered young-of-the-year suckers from Upper Klamath Lake, Oregon. International Journal for Parasitology 50: 315-330.

Achatz T.J., Pulis E. E., González-Acuña D., Tkach V.V. 2020. Phylogenetic relationships of Cardiocephaloides spp. (Digenea, Diplostomoidea) and the genetic characterization of Cardiocephaloides physalis from Magellanic Penguin, Spheniscus magellanicus, in Chile. Acta Parasitologica 65: 525-534.

Achatz T.J., Cleveland D.W., Carrión Bonilla C., Cronin L., Tkach V.V. 2020. New dicrocoeliid digeneans from mammals in Ecuador including a highly genetically divergent new genus from an ancient marsupial lineage. Parasitology International 78: 102138.

Fecchio A., Martins T.F., Bell J.A., De LaTorre G.M., Kohler G., Pinho J.B., Weckstein J.D., Tkach V.V., Labruna M.B., Dias R.I. 2020. Low host specificity and lack of parasite avoidance by immature ticks in Brazilian birds. Parasitology Research 119:2039–2045.

Tkach V.V., Achatz T.J., Pulis E. E., Junker K., Snyder S.D., Bell J.A., Halajan A., Melo F.T.V. Phylogeny and systematics of the Proterodiplostomidae Dubois, 1936 (Digenea: Diplostomoidea) reflect the complex evolutionary history of the ancient digenean group. Systematic Parasitology, in press






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