STEREOSCAN OBSERVATIONS ON THE TEGUMENTAL SURFACE OF CATATROPIS-INDICUS SRIVASTAVA, 1935

Surface microtopographical details of Catatropis indicus inhabiting th e intestine of Gallus gallus dom. have been studied using scanning ele ctron microscope. The elongated body of the fluke is free from any spi nes; however, tegument surrounding the oral sucker is provided with do med uniciliated papillae. Twelve pairs of gland-like ventral papillae are present on each side of the mid-ventral ridge. Four types of tegum ental structures viz., blunt elongated, pointed elongated, scale-like short with round tip, and cilia-like densely packed, are present on th e ventral surface. The dorsal surface is free of any papillated struct ures.