Morphological Variation in Allocreadium wallagoensis sp. nov. (Digenea: Allocreadiidae) from Wallago attu (Bloch & Schneider, 1801) at Jayakwadi Dam of Aurangabad district (M.S.)

Abstract

In present study, new species of Allocreadium is described from the intestine of freshwater cat fish Wallago attu from Jayakwadi Dam of Aurangabad district in Maharashtra state of India. Morphologically, in this species ovary is smaller than testes, close or even overlapping to the anterior border of testis. Cirrus sac is large, well developed, lying obliquely anterior to the acetabulum and overlapping left or right ceca. Vitellaria are numerous, extending from acetabulum to posterior extremity and distributed over both sides around the ceca.