CALLULA TRIANGULARIS

This genus is closely allied to the black-throated frog from which it is distinguished by the palatine bones forming an acute ridge. It includes rather stoutly built frogs of small size, but one of the Indian species at least reaches a length of three inches from snout to vent. The tips of the digits are more or less dilated. The outer metatarsals are united. The sternum is cartilaginous. The omosternum and the precoracoids are absent. The terminal phalanges are triangular or T-shaped.