Year: 2019, Issue: December

Bio-systematic studies on Silurotaenia yamagutii sp.nov. (Cestoda : Proteocephalidae Laure,1911) of freshwater fish Mystus seenghala (Sykes,1839).
Author:
Vikram Satwarao Deshmukh, Sanjay S. Nanware, Dhanraj B. Bhure and R. M. Dhondge
Keyword:
Bio-Systematic, Cestode, Mystus seenghala Sykes 1839, Silurotaenia yamagutii Sp.Nov.
During survey of piscean helminths, 22 out of 120 freshwater fish Mystus seenghala (Sykes,1839) from Kandhar, dist. Nanded (M.S.) were found infected with 32 cestode parasites during February,2011-January,2013. Cestodes were identified on the basis of their morphological characteristics. After staining, drawing by using Camera lucida, the results showed that cestode was Silurotaenia (Nybelin,1942). Silurotaenia yamagutii Sp.Nov. comes closer to all the known species of genus Silurotaenia in general topography of organ but differs due to Scolex triangular, bears pair of suckers, suckers oval to rounded, muscular, rosetellum medium, oval to rounded, lies at the anterior extremity of scolex, rostellum surrounded by 14-16 hooks, arranged in circle, 'V' shaped, neck absent, mature proglottids four times broader than long, testes small, oval to rounded, evenly distributed all over the proglottid, 70-75 in numbers, pre-ovarian, cirrus pouch cylindrical, lie near anterior side of proglottid, cirrus thin curved tube, vas deferens long, thin tube, vagina thin tube, arises from posterior side of the cirrus pouch, forms receptaculum seminis, genital pore oval, marginal, ootype small, oval, ovary large, bilobed, dumbbell shaped, excretory canals long tube and vitellaria follicular, arranged in two rows.

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