The Molly Miller is a member of the comb tooth blennies family. They are distributed around Bermuda, Florida and northern Gulf of Mexico South to Brazil. Also in the Eastern Atlantic around the Mauritania and Canary Islands south to Namibia and parts of the Mediterranean. Also around Japan and Tiawan.
Molly Millers like most other blennies inhabit shallow rocky areas where there is plenty of nooks and crannies for them to hide in. Molly Millers are herbivors and do not eat other fish.