Andamia tetradactylus (Bleeker 1858)

Description: Dorsal fin XVI-XVII, 17-18, spines with filamentous tips, the 2nd dorsal spine elongated particularly in males; anal fin II, 23-24; pectoral rays 15; pelvic fin I,4; unbranched caudal rays; last anal ray bound to caudal fin by a membrane. Mouth with numerous movable jaw teeth; crenulated lips margin; lower lip with fleshy disc, cup-shaped. Both sexes with occipital crest; nuchal cirri absent; supraorbital cirrus pinnate; nasal cirrus small and simple (Ref. 559, 90102). Body elongate; depth at anal fin origin 7.5-8.5 in SL. Overall greyish brown, ventrally white; body with spotty vertical bars; head and base of pectoral fin with spots, brown and small (Ref. 90102).

Distinct pairing (Ref. 205).

Dorsal spines (total): 16 - 17; Dorsal soft rays (total): 17 - 18; Analspines: 2; Analsoft rays: 24 - 25

Found on rocks in the surf line constantly washed by sprays or breakers. Attains less than 12 cm TL. Oviparous. Eggs are demersal and adhesive (Ref. 205), and are attached to the substrate via a filamentous, adhesive pad or pedestal (Ref. 94114). Larvae are planktonic, often found in shallow, coastal waters (Ref. 94114).