Review of the genus Pallisentis (Acanthocephala: Quadrigyridae) with the erection of new species Pallisentis lucknowensis sp.nov. from the intestine of Channa marulius (Hamilton) and Channa punctatus (Bloch) (Channidae)

Abstract

   The genus Pallisentis is an endoparasitic acanthocephalan inhabiting the intestinal walls. Hooks and spines are significant taxonomical  and adaptive tools in leading a parasitic life successfully. Pallisentis lucknowensis  n. sp. is a freshwater fish parasite found from the intestine of two hosts i.e. Channa marulius and Channa punctatus inhabiting Gomti river. Present specimen is distinguished solely by the extension of trunk spines upto middle region of anterior testis, equal leminsci and having preequatorial anterior testis which proved to be a variable trait.

Key Words:-  Acanthocephala, Quadrigyridae, Pallisentis, Channa