Survey on the Morphology of Rana Leptoglosssa Cope’s Severly affected Frog

Rana leptoglossa is classified broadly as a near-threatened amphibian species. But no attempt has been made so far to study Rana leptoglossa’s growth and metamorphosis in its natural environment or under captivity conditions. Keeping in mind the lack of evidence as well as R's endemic and rare status. Studies on frog growth and metamorphosis have been done on leptoglossa. Within 90 minutes, the first division of the fertilized egg of Rana leptoglossa is completed, and after 9 hours of fertilization, Morula (Gosner stage 8) is achieved. The gastrulating phase (Gosner stage 10) began after 11 hours, the forming of the neural plate (Gosner stage 13) took place after 15.30 hours, and the forming of the neural fold (Gosner stage 14) began after 18 hours. The embryo's hatching happened after 4 days of fertilization. After 7 days, the gill buds (Gosner stage 19) emerged. After 26-27 days, the hind limbs (Gosner stage 26) emerged and were fully formed (Gosner stage 40) after 55-58 days of fertilization. After 61-63 days, when the tadpole was found to have the highest length (46-47 mm), the forelimb buds (Gosner stage 42) emerged. The degeneration of the tail of the tadpole then began and the metamorphosis was finished in 68-72 days when the tadpole was turned into a frog let (stage 46 of Gosner). R. Long comparative period of metamorphosis. The predominant state of temperature and day length as well as genetic programming may be due to leptoglossa. The present research appears to be the first of its kind in which different stages of growth and metamorphosis have been identified for the endangered frog, Rana leptoglossa.