Callechelys leucoptera is an eel in the family Ophichthidae (worm/snake eels). It was described by Jean Cadenat in 1954. It is a tropical marine eel which is known from the eastern Atlantic Ocean including Senegal to Cote d'Ivoire. It is known to dwell at a depth of 45 metres. It inhabits shallow waters where it forms burrows in the sand which are sometimes exposed during low tide. Males can reach a maximum total length of 73 centimetres but more commonly reach a TL of 50 centimetres.C. Given a list of categories: company, educational institution, artist, athlete, office holder, mean of transportation, building, natural place, village, animal, plant, album, film or written work, what category does the paragraph belong to?
Animal