A pocket-sized pocket shark found in the Gulf of Mexico has turned out to be a new species. And the mysterious pouches that it’s named for, up near its front fins? Scientists say they squirt little glowing clouds into the ocean.

Researchers from around the Gulf and in New York have named the species the American pocket shark, or Mollisquama (mah-lihs-KWAH-muh) mississippiensis (MISS-ih-sip-ee-EHN-sis).

It’s only the third out of more than 500 known shark species that may squirt luminous liquid, said R. Dean Grubbs, a Florida State University scientist who was not involved in the research. He said the other two are the previously known pocket shark and the taillight shark , which has a similar gland near its tail MORE