Ancistrocheirus Lesueurii

Ancistrocheirus lesueurii, the sharpear enope squid, is the only species in the genus Ancistrocheirus and family Ancistrocheiridae. With a mantle length of 25 cm, this moderately sized squid may be found throughout the tropical and subtropical oceans. They tend to be found at mesopelagic depths (200-1000 metres down).

Although only one species is recognized, some have suggested that more than one species may exist due to differences in the paralarval morphology. Paralarva is the first free-living stage for cephalopods.