Epididymis of the Lizard <i>Eutropis carinata</i>: A Light Microscopic and Ultrastructural Seasonal Study

The epididymis of the lizard Eutropis carinata can be divided into four regions viz., an initial segment (extra testicular) Efferent ductules (Eds) and three regions, anterior region, a broad middle, narrow posterior, comparable to caput, corpus, cauda epididymidis mammals. region is closely associated with whitish testicular), (Eds). epididymal wall consists epithelial layer lining lumen resting on basement membrane surrounded by five layers smooth circular muscles, connective tissue, serosa. ultrastructure study Eds during breeding season discloses cell types in its epithelium ciliated, non-ciliated, Apical-Mitochondria Rich Cells (AMRC), basal cells. anterior, posterior show different namely principal, basal, AMRC, narrow, clear Ciliated non-ciliated cells are limited while, found rest epididymis. Basal AMRC all regions. AMRCs most abundant type while principal major components remaining During non-breeding season, present but regression altered cytology without any sign cellular activity even circulating testosterone levels significantly higher compared season. This first report describing ultrastructural seasonal variations Keeled Indian Mabuya, (Scincidae).