Sloanes viperfish
Chauliodus sloani
Sloane’s viperfish, Chauliodus sloani, is a predatory, mesopelagic dragonfish found in deep-pelagic waters across the world. Its size can range from 22 mm to 220 mm, and it is an iridescent silver-blue color. It has two rows of photophores, one on each side of the ventral part of its body.