Year: 2019, Issue: December

Studies on Azygia gigantica sp.nov. (Digenea : Azygiidae Odhner,1911) of freshwater fish Channa punctata (Bloch).
Author:
Kanchan Gulabrao Gaikwad, Sanjay Shamrao Nanware and Dhanraj Balbhim Bhure
Keyword:
Azygia, Azygidae, Channa punctata, Digenea.
Genus Azygia Looss,1899 (Trematoda : Azygiidae Odhner,1911) is one of the most important digenean trematode parasite with wide geographic distribution in the world. The purpose of the present study was to describe morphological and morphometrical characteristics of digenetic trematodes. Present study deals with bio-systematic studies of Azygia gigantica Sp.Nov. collected from intestine of Channa punctata. It comes closer to known valid species of the genus Azygia (Looss,1899) in general topography of organs but differs due to body elongated, medium, nonspinose, oral sucker small, sub-terminal, spherical, ventral sucker spherical, pre-equatorial, Pre-pharynx absent, testes are oval in shape, lies side by side, pre-ovarian, anterior testis is slightly larger than posterior one, cirrus pouch elongated, pyriform, pre-acetabular, ovary compact, post testicular, vitellaria follicular, small, uterus lies between ovary and posterior border of acetabulum, eggs elongated and non-operculated.

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