On a new species of the genus Opisthorchis Blanchard (1895)1 from Rita rita.

Late Meena Sinha^a & Umapati Sahay^b*
^aDept. of Zoology, K.B. Women’s College,Vinoba Bhave University, Hazaribagh, Jharkhand, India
^b*Dept. of Zoology, Ranchi University, Ranchi, Jharkhand, India
Received : 15^th October, 2016; Revised : 25^th February, 2017

Abstract:- A new termatode of the genus Opisthorchis has been described from Rita rita, compared with the existing species & discussed. The authors have reasons to consider the fluke under discussion to be new to the science of helminthology. The description preceeds with an introduction.Principle measurements in mms. L x B – 8.46 x 1.296; oral sucker L x B – 0.19 x 0.18 prepherynx present, pharynx present 0.126 x 0.108; oesophagus 0.27, caecae long reach post end; testes lobuluted T1 0.738 x 0.576 at 0.918 from post end , T2 0.828 x 0.648 at 0.162, Gp-preacetabular, ovary 0.306 x 0.36 pre testicular seminal receptacle 0.27 x 0.396.

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