The small-eyed rabbitfish (Hydrolagus affinis) is a species of fish in the Chimaeridae family. It has very wide distribution almost everywhere in northern Atlantic at depths from 300 to 2,410 m, being most common below 1,000 m. Its total length ranges from 32 to 147 cm. It has a short nose with a blunt tip. The small mouth is located on the lower part of the head and has thick lips. Its back slopes gradually and ends to a fine tail.