Open AccessTwo new species of Polynemicola Unnithan, 1971 (Monogenoidea: Microcotylidae) in Threadfin fishes (Perciformes: Polynemidae) from Visakhapatnam coast, Bay of Bengal, India
Author(s) -
Mani Gudivada,
Anu Prasanna Vankara
Publication year - 2020
Publication title -
journal of parasitic diseases
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.357
H-Index - 21
eISSN - 0975-0703
pISSN - 0971-7196
DOI - 10.1007/s12639-020-01264-y
Subject(s) - perciformes , bay , biology , genus , bengal , fishery , cirrus , gill , zoology , geography , fish <actinopterygii> , archaeology , meteorology
Two new species of Polynemicola Unnithan, 1971 collected from gills of marine threadfin fishes Polydactylus sextarius and Polydactylus plebeius (Polynemidae) from Visakhapatnam coast, India are described. The genus Polynemicola is unique in possessing eversible spiny cirrus. The new species Polynemicola sextariusii was found to possess unique morpho-anatomical characters like median row of spines on the cirrus, 12 vaginal hooks, 5-7 testes in a single row. Another new species Polynemicola glandularis differs from existing species of Polynemicola in having prostatic gland cells conspicuously on either side of seminal vesicle, septate oral suckers and 20 vaginal hooks.