Effect of Commiphora molmol on Bithynia connollyi with special reference to their morphology and medical importance

Morphological studies on B. connollyi dealt with the shell description, concerning colour, number of whorls, measurements, the correlation coefficient between shell shape and thickness, weight, length and width. Electrophoretic studies were carried out on snail's foot. Examination of B. connollyi showed a lot of gymnocephalus cercariae of liver fluke, Opisthorchis sp. Commiphora mohmol (Myrrh) has molluscicidal effect on B. connollyi at concentration (80 ppm) after 72 hr exposure. The mortality rate increased with the increasing the exposure time (death 100% at 72 hr. with 80 ppm & death 100% at 96 hr. with 40 ppm). Based on safety to man, animals and environment, C. molmol is highly recommended as a cheap herbal molluscicide.