[citation needed] It has a more highly derived morphology than some more primitive species, showing differences in lung structure, the reproductive organs, and the kidneys.

[3] The Cayenne caecilian occurs in South America, including the Amazon basin and river systems in the Guianas.

It spends the day in a communal burrow, emerging at night to hunt through the sediment for small invertebrates, such as insect larvae and shrimps.

At first, they feed on the yolks of their eggs, but they develop rasping teeth and later consume glandular secretions produced by the lining of the oviduct.

Birth takes place after about eight months and the juvenile caecilians shed their temporary teeth and develop their adult dentition.