California to Ecuador. Var. lineolatus Valenciennes, 1832.
3-5m deep, on coral reefs, Punta Esquina, Golfo Dulce, Puntarenas, W. Costa Rica. 42mm.

Same area, same variant, but different perio. This one is just a thin, homogeneous layer.
Punta Gallardo, Golfo Dulce. 36mm.