ABSTRACT

A new species of Henneguya parasitizing tissues affected by the ulcerative disease syndrome of a freshwater fish Anabas testudineus (Bloch) from Khiodum and Pumlen lakes of Manipur state is described. Of the fishes examined 75% were found to be infested with this myxozoan parasite. Mature spores of the new species are elongated, biconvex, and oval with bluntly rounded anterior end and gradually tapering posterior end with a caudal prolongation, measuring 12.6-15.4 (14.0± 1.1) μm in length. Length of the caudal prolongation is 11.2-12.6 (11.7± 0.6) μm. The width of the spores is 5.6-7.0 (6.3± 0.5) μm. The length of the polar capsules is 5.6-6.3 (5.5± 0.3) μm.

Keywords: Myxozoa, Henneguya manipurensis sp. nov., freshwater fish, Anabas testudineus, Manipur