Pentacerotidae

fish family

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Last updated

July 15, 2026

Quick Summary

The Pentacerotidae, also known as pelagic armorheads, are a family of fish that resemble butterflyfish. They are characterized by a high dorsal fin and significantly larger dorsal, anal, and pelvic spines. Their heads are rough with exposed bony plates, and their snouts are typically elongated, ending in a small mouth. The lips have a "hairy" texture. These fish are found in deeper coastal waters and number around 12 species, reaching sizes of up to 50 cm (20 inches).1

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perciform
Annotated classification
Family Pentacerotidae (pelagic armorheads) Resemble Chaetodontidae but with higher dorsal fin and much larger dorsal, anal, and pelvic spines; dorsal fin usually strongly elevated; head rough with exposed bony plates; snout usually elongated bearing small mouth at its end; lips with “hairy” skin. About 12 species,…
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Family Pentacerotidae (pelagic armorheads) Resemble Chaetodontidae but with higher dorsal fin and much larger dorsal, anal, and pelvic spines; dorsal fin usually strongly elevated; head rough with exposed bony plates; snout usually elongated bearing small mouth at its end; lips with “hairy” skin. About 12 species,…
Read More