Razor Surgeonfish
Prionurus laticlavius
Razor Surgeonfish (Prionurus laticlavius) is a reef-associated surgeonfish of the eastern Pacific, best known for the sharp, detachable blade-like scutes on its tail base. It grazes on algae over rocky reefs and surge zones and is usually seen in schools.
Identification points
- Distinctive row of knife-like bony scutes at the base of the tail
- Deep-bodied, laterally compressed surgeonfish shape with a small mouth
- Gray to bluish body with a prominent pale yellow to white flank band in adults
Habitat
Shallow rocky reefs, reef edges, surge channels, and exposed coastal reefs, typically where strong water movement supports algal growth; adults often school over hard bottom.
Bait notes
Not a targeted game fish and rarely taken intentionally. If attempted, small bits of algae, seaweed-flavored soft baits, or tiny hooks with bread/chum may draw curiosity, but they are generally more interested in natural grazing than bait.
Behavior
Diurnal grazer that picks filamentous algae and turf from rock and coral. Commonly forms schools and stays close to structure, moving steadily through reef habitat rather than striking aggressively at prey.
Caution
Handle carefully: the tail-base scutes are sharp and can cut skin. As a reef fish from tropical eastern Pacific waters, local consumption advisories may apply for reef-associated species; check regional rules before keeping any.
Fishing notes
Best observed rather than pursued; they are poor hook-up targets on standard tackle. If targeting for reef collection or angling where legal, use very light gear and small presentations near algae-covered rock, but avoid removing fish from protected reef areas.