Dermophis
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''Dermophis'' is a genus of worm-like
amphibian Amphibians are ectothermic, anamniote, anamniotic, tetrapod, four-limbed vertebrate animals that constitute the class (biology), class Amphibia. In its broadest sense, it is a paraphyletic group encompassing all Tetrapod, tetrapods, but excl ...
s in the family
Dermophiidae The Dermophiidae are a family of neotropical caecilians. They are found in Central and South America, and Africa. Like other caecilians, they superficially resemble worms or snakes. They are the only viviparous caecilians (species that give bi ...
, the Neotropical and Tropical African caecilians. They are found in the Middle America between southern
Mexico Mexico, officially the United Mexican States, is a country in North America. It is the northernmost country in Latin America, and borders the United States to the north, and Guatemala and Belize to the southeast; while having maritime boundar ...
and northwestern
Colombia Colombia, officially the Republic of Colombia, is a country primarily located in South America with Insular region of Colombia, insular regions in North America. The Colombian mainland is bordered by the Caribbean Sea to the north, Venezuel ...
. Common names Mexican caecilians or Neotropical caecilians are sometimes used for them.


Species

The genus has seven species:


Description

The largest species, ''Dermophis mexicanus'', can grow to a total length of , while the smallest one, ''Dermophis parviceps'', reaches only . The body has numerous folds, from 97 to 258, with considerable variations both between individuals within a species and between the species. There is a tentacle about halfway between eye and nostril. The lower jaw has only one row of teeth. Living specimens are very dark purple to purple-black above and creamy white below. Based on external morphology, three groups of species can be recognized: # large caecilians with numerous secondary folds: ''D. mexicanus'' and ''D. oaxacae'' # moderate-sized caecilians with numerous secondary folds: ''D. costaricense'', ''D. glandulosus'', ''D. gracilior'' # small to moderate-sized caecilians with few secondary folds: ''D. occidentalis'', ''D. parviceps''


References

{{Taxonbar, from=Q2232448 Amphibian genera Amphibians of Central America Amphibians of South America Taxa named by Wilhelm Peters Taxonomy articles created by Polbot