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Caecilians feed on small subterranean creatures such as earthworms. The body is cylindrical and often darkly coloured, and the skull is bullet-shaped and strongly built. Caecilian heads have several unique adaptations, including fused cranial and jaw bones, a two-part system of jaw muscles, and a chemosensory tentacle in front of the eye. The ...
Caeciliidae is the family of common caecilians.They are found in Central and South America. Like other caecilians, they superficially resemble worms or snakes.. Although they are the most diverse of the caecilian families, the caeciliids do have a number of features in common that distinguish them from other caecilians.
Rhinatrematidae is a family of caecilians, also known as the Neotropical tailed caecilians, American tailed caecilians. or beaked caecilians. They are found in the equatorial countries of South America. [1] [2] They are usually regarded as the most basal of the caecilian families, with numerous characteristics lacking in the other groups.
Rhinatrema is a genus of caecilians in the family Rhinatrematidae. [1] [2] Their common name is two-lined caecilians. The genus is known from the Guyanas (Guyana, French Guiana, and Suriname) and adjacent Brazil. [1] Most Rhinatrema are known to inhabit and live in areas of tropical forests where there is an abundance of dense, dead vegetation ...
The Ichthyophiidae are the family of Asiatic tailed caecilians or fish caecilians found in South and Southeast Asia as well as southernmost China. [1] They are primitive caecilians, lacking many of the derived characters found in the other families. For example, their mouths are not recessed underneath their heads, they possess tails, and they ...
The Siphonopidae are the family of common caecilians. They are found in Central and South America. Like other caecilians, they superficially resemble worms or snakes. They are the sister group to Dermophiidae, also of South America. Siphonopids are oviparous caecilians, meaning they lay eggs. They have imperforated stapes and no inner ...
Oscaecilia is a genus of caecilians in the family Caeciliidae. [ 1 ] [ 2 ] [ 3 ] The genus is distributed in southeastern Central America (Costa Rica, Panama) and northern South America , possibly extending into southern Brazil.
Unlike other caecilians, they have only primary annuli; these are grooves running incompletely around the body, giving the animal a segmented appearance. All other caecilians have a complex pattern of grooves, with secondary or tertiary annuli present. Also uniquely amongst tetrapods, the scolecomorphids lack a stapes bone in the middle ear. [4]