Species: Peristedion nesium, Insular armored-searobin

Peristedion nesium Bussing, 2010

Insular armored-searobin

Head and body flattened below and completely covered in a heavy armor of bony plates and spines; bony keel along side of face wide, serrated, ends in a  right-angled flange; snout long, depressed; the pair of rostral spines projects forwards, almost parallel; nasal spine well developed; snout plates thin, parallel, widely spaced, very short, less than pupil length, 12.1-18.2% of head length; filamentous barbell 31.8-44.2% of head length, with filaments up to ½ its length; chin and lip barbels slender, few; gill rakers 33-40; dorsal fin divided into 2 parts, VIII + 16-18; pectoral fin with main fin (12) plus 2 free rays below; anal fin 0, 16-18; pelvic fins are wide apart, below base of pectorals, with I, 5 rays.