American pocket shark
Mollisquama mississippiensis or the American pocket shark is a species of pocket shark native to the Gulf of Mexico. It is the second species of pocket shark to be described.
The head is bulbous, resembling that of a whale. The shark is very small, at only 5.5 inches (140 mm). Near the gills are two "pockets" that secrete a luminous fluid which may enable the shark to hunt. The body is grey with the fins being darker. The areas around the gills are cream colored. There are clusters of photophores around the body, which are able to produce light.
