Pygmy shark

Euprotomicrus bispinatus

Length Up to 11 inches; smallest shark in Hawaiian waters
Description Charcoal gray to black body; clear fin edges; luminescent ventrally
Food Crustaceans, squid, bony fishes
Habitat Vertical migrator, from surface to depths of over 1,300 ft and possibly much deeper
Reproduction Aplacental vivipary; litter size to at least 8; size at maturity 7 inches for males, 9 inches for females