Thorny-headed worms

The description of Paralongicollum nemacheili n. gen., n. sp. (acanthocephala: Pomphorhynchidae) from freshwater fishes in Kazakh S.S.R.

Publication Type:Journal Article
Year of Publication:1991
Authors:O. M. Amin, Bauer, O. N., Sidorov, E. G.
Journal:Journal of ParasitologyJ. PARASITOL.
Pagination:26 - 31
Date Published:1991///
ISBN Number:00223395 (ISSN)
Keywords:Acanthocephala, animal, article, Cypriniformes, Female, fish, Fish Diseases, Fresh Water, Helminthiasis, Helminthiasis, Animal, Longicollum, Longicollum sergenti, Male, morphology, Nemacheilus, nonhuman, Oncorhynchus mykiss, Pisces, Pomphorhynchidae, Pomphorhynchus, Salmo, species, Tenuiproboscis, Terminology, Trout

Paralongicollum nemacheili n. gen., n. sp. is described from Salmo gairdneri Richardson and Nemacheilus stoliczkai Steindacher in Lake Kul'say in the basin of Lake Balkhash, Kazakh S.S.R. Its long uniformly cylindrical neck and nonfiliform proboscis distinguish it from the other 3 genera of the family. Tenuiproboscis Yamaguti, 1935, has a filiform proboscis. The neck of Pomphorhynchus Monticelli, 1905, has a bulb anteriorly, and that of Longicollum Yamaguti, 1935, is spirally twisted with expansions. A key to the genera of Pomphorhynchidae is provided. The relatively longer necks in juveniles than in larger worms probably enhance the establishment of new infections. A large proportion of worms had extensive body wall deformities. Longicollum sergenti (Choquette and Gayot, 1952) Golvan, 1969, is relegated to the new genus Paralongicollum.

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