The coast worm lizard (''Cynisca leucura'') is a

worm lizard Amphisbaenia (called amphisbaenians or worm lizards) is a group of usually legless squamates, comprising over 200 extant species. Amphisbaenians are characterized by their long bodies, the reduction or loss of the limbs, and rudimentary eyes. As ...

species In biology, a species is the basic unit of classification and a taxonomic rank of an organism, as well as a unit of biodiversity. A species is often defined as the largest group of organisms in which any two individuals of the appropriate s ...

in the

family Family (from la, familia) is a Social group, group of people related either by consanguinity (by recognized birth) or Affinity (law), affinity (by marriage or other relationship). The purpose of the family is to maintain the well-being of its ...

Amphisbaenidae. It is found in western Africa. The round, yet narrow, shape of their head is conserved amongst the species and develops as they grow. They all burrow head first and since they do not express sexual dimorphism, all sexes possess a similar appearance and shape.

References

Cynisca (lizard) Reptiles described in 1839 Taxa named by André Marie Constant Duméril Taxa named by Gabriel Bibron {{lizard-stub