CACOPUS SYSTOMA

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 This genus includes stoutly built frogs burrowing in habit and freeing chiefly on ants. The tympanum is concealed or indistinct. There are two toothed dermal ridges, a narrow one across the paraphenodial region and another, broader one in front of the oesophagus. The fingers are free and the toes are webbed at the base. The tips of the digits are not dilated. The outer metatarsals are united. The sternum is large, plate-like and cartilaginous. The diapophysis of the sacral vertebrae are prominently dilated.