New Zealand black goby

Gobiopsis atrata, the New Zealand black goby, is a species of goby endemic to the marine waters around northern New Zealand where it occurs in tide pools and on reefs down to depths of about 30 m. It lives in narrow crevices and is most commonly seen with its head poking out of its lair to which it will hastily retreat if disturbed. This species can reach a length of 8.5 cm TL.