UTTAR PRADESH JOURNAL OF ZOOLOGY

The study on freshwater snails at Darbari and Kodamdesar pond was carried out for an annual cycle encompassing the years 2022-2023. The study involved diversity of snail species found in above mentioned ponds. In this study, the major focus was on the diversity of freshwater snails, i.e., different species of prosobranch and pulmonate snails found in Darbari and Kodamdesar ponds of Bikaner district. The following species Bellamya bengalensis, Digoniostoma pulchella, Indoplanorbis exustus, Lymnea acuminata were found in Darbari and Kodamdesar ponds. Among these, Bellamya bengalensis, Digoniostoma pulchella are prosobranch, while Indoplanorbis exustus, Lymnaea acuminata are pulmonate snails. Aspect of population density total prosobranch represent 50.49 no./m² and pulmonate 31.83 no./m². Season wise Bellamya bengalensis represent 61.48% in monsoon at Darbari pond. At Kodamdesar Indoplanorbis exustus shows 50.02% in summer season. Prosobranch have gills for water respiration and pulmonate have lungs for aerial respiration.