Polynemicola is a genus of monegenean. As all Monogenea, species of Polynemicola are ectoparasites that affect their host by attaching themselves as larvae on the gills of the fish and grow into adult stage. This larval stage is called oncomiracidium, and is characterized as free swimming and ciliated.
Description
Members of the genus Polynemicola are characterised by a haptor nearly as long as, and distinct from, body; an eversible spiny cirrus; an unarmed genital atrium usually with a muscular sphincter-like rim and receptaculum seminis often well developed near the distal end of vagina.
Species
Currently 14 species are recognized:
Polynemicola aequispinosa Mamaev, 1977
Polynemicola ambiguus Mamaev, 1977
Polynemicola brachypetala Zhang, Yang & Xiao in Zhang, Yang & Liu, 2001
Polynemicola ambigua Mamaev, 1977 accepted as Polynemicola ambiguus Mamaev, 1977
Polynemicola californica Bravo-Hollis, 1985 accepted as Polynemicola californicus Mamaev, 1977
Polynemicola ichimidai (Ishii & Sawada, 1938) Unnithan, 1971 included in Bivagina tai as Bivagina tai (Yamaguti, 1938) Yamaguti, 1963
References
12Unnithan, R. V. (1971). On the functional morphology of a new fauna of Monogenoidea on fishes from Trivandrum and environs. Part IV. Microcotylidae sensu stricto and its repartition into subsidiary taxa. American Midland Naturalist, 366-398.