Pseudomyrophis nimius is an eel in the family Ophichthidae. It was described by James Erwin Böhlke in 1960. It is a marine, subtropical eel which is known from the Atlantic Ocean, including Angola, the Gulf of Mexico, and Florida Atlantic. It is known to dwell at a depth range of 320 to 755 metres. Males can reach a maximum total length of 36.7 centimetres (14.4 in).