Apogon quadrisquamatus Longley 1934

A small, stubby, plain pale red cardinal fish with a smudgy bar (sometimes tiny) on caudal peduncle.

Mouthbrooders (Ref. 240). Distinct pairing during courtship and spawning (Ref. 205).

Found on coral, sand, or gravel bottoms. Sometimes associates with sea anemones, possibly as shelter from predators; it also lives in tubular sponges (Ref. 26938, 45560).