Discovering high species diversity of Ophiotaenia tapeworms (Cestoda: Proteocephalidae) of watersnakes (Colubridae) in North America

0580255 - BC 2024 RIV AU eng J - Článek v odborném periodiku
de Chambrier, A. - Kudlai, O. - McAllister, C.T. - Scholz, Tomáš
Discovering high species diversity of Ophiotaenia tapeworms (Cestoda: Proteocephalidae) of watersnakes (Colubridae) in North America.
International Journal for Parasitology: Parasites and Wildlife. Roč. 22, DEC (2023), s. 255-275. ISSN 2213-2244. E-ISSN 2213-2244
Grant CEP: GA MŠMT(CZ) LUAUS23080
Institucionální podpora: RVO:60077344
Klíčová slova: sp n. eucestoda * helminth-parasites * platyhelminthes * snakes * herpetofauna * phylogenies * amphibians * trematoda * cestoidea * nematoda * Onchoproteocephalidea * Ophiotaenia * New species * Taxonomy * Morphology * Watersnakes * Natricinae * Nearctic region
Obor OECD: Zoology
Impakt faktor: 1.8, rok: 2022
Způsob publikování: Open access
https://www.sciencedirect.com/science/article/pii/S2213224423000810?via%3Dihub

Tapeworms of the genus Ophiotaenia La Rue, 1911 parasitize herptiles (= amphibians and 'reptiles') throughout the world, with about 100 species recognised as valid. In the present work, the North American species found in watersnakes (Colubridae) are reviewed. An examination of the holotype of Ophiotaenia perspicua La Rue, 1911, the type species of the genus, and other specimens from Nerodia rhombifer (Hallowell) revealed that two species were used for the species description. The 'true' O. perspicua has a small scolex and small, round suckers. This species is redescribed based on new material from Oklahoma, USA. The other species from N. rhombifer, Ophiotaenia laruei n. sp., has a larger scolex and larger, almost triangular suckers. Examination of the types of O. variabilis (Brooks, 1978) from N. rhombifer and N. cyclopion (Dume ' ril, Bibron et Dume ' ril) from Louisiana, USA has revealed that it is a mixture of two or more species. Because of poor quality of these specimens, it is not possible to adequately characterise O. variabilis, which is considered a species inquirenda. In addition, two new species are described from Nerodia fasciata confluens (Blanchard). Ophiotaenia currani n. sp. from Mississippi, USA is characterised by elongate, narrow proglottids, few testes, and a relatively long cirrus sac. Ophiotaenia tkachi n. sp. from Louisiana, USA is characterised by relatively short and wide proglottids, more testes, and an unusual terminal part of the vagina with folds. Morphologically similar tapeworms of N. fasciata confluens, N. erythrogaster (Fo center dot rster), N. sipedon (Linnaeus), and Agkistrodon piscivorus (Lace ' pe`de) (Viperidae) from Arkansas and Oklahoma, USA, which are genetically nearly identical, are considered to be conspecific with O. tkachi n. sp. The present data suggest a high, previously undescribed species diversity of proteocephalid tapeworms in watersnakes in North America, and generally strict host specificity of these tapeworms.
Trvalý link: https://hdl.handle.net/11104/0349005