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Last updated on April 23, 2014 at 15:23 EDT

Big-eyed cardinalfish

The Big-eyed cardinalfish, Bigeye cardinalfish, or Bigeye, Epigonus lenimen, is a deepwater cardinalfish of the genus Epigonus, found in southern temperate waters south of Australia, Madagascar, and New Zealand, at depths of between 1640.42 and 2624.67 ft (500 and 800 m). Its length is between 3.94 and 7.09 in (10 and 18 cm).

The Big-eyed cardinalfish is an elongated deepwater species having a pointed snout, long caudal peduncle, and two triangular-shaped dorsal fins mirrored by triangular pelvic and anal fins. Very large eyes dominate the head, and the mouth is full of minute teeth.

Big-eyed cardinalfish are slow swimmers and live near the bottom, feeding off of small planktonic animals.

Illustration by Dr Tony Ayling

Big-eyed cardinalfish