Whipnose Anglerfish Identification Guide

Key identification features

• Females have a small to moderately globular, dark body, often more elongate than other deep-sea anglerfish
• Extremely long, whip-like illicium extending from the snout tip, frequently several times the length of the body itself
• Tiny luminous esca at the very end of the long lure, used to attract prey from a distance
• Small eyes and a wide, muscular jaw adapted for swallowing prey close to the fish's own size
• Smooth to lightly textured dark skin without heavy spines or tubercles
• Males are minute and free-swimming rather than permanently fused to females

Common look-alikes

• Football fish (Himantolophidae): also carry an illicium, but theirs is much shorter and sturdier, never approaching the extreme whip-like length of the whipnose anglerfish's lure.
• Other long-lure anglerfishes (Linophrynidae): also have an elongated illicium, but it is typically held curled forward near the mouth rather than trailing far out as an extremely thin whip.
• Sea toads and other ceratioid anglerfish: share the globular dark body plan, but have proportionally short lures compared to the whipnose's signature extreme length.

Where you'll see one

Whipnose anglerfish inhabit the deep bathypelagic zone of tropical and subtropical oceans worldwide, generally between about 1,000 and 4,000 meters, trailing their extraordinarily long lure through open water to draw in unsuspecting prey.