Dalophis obtusirostris is an eel in the family Ophichthidae (worm/snake eels). It was described by Jacques Blache and Marie-Louise Bauchot in 1972. It is a tropical, marine eel which is known from the eastern Atlantic Ocean, including Mauritania and Senegal. It inhabits estuaries and forms burrows in sand or mud. Males can reach a maximum total length of 38.8 centimetres.