Threespot squirrelfish (Sargocentron cornutum)

Biology

Dorsal spines (total): 11; Dorsal soft rays (total): 12-13; Anal spines: 4; Anal soft rays: 9. Stripes black to red above, with thin white interspaces. Black peduncular blotch and additional blotches at soft dorsal and anal fin bases that vary greatly in size between individuals or habitats. Large spine in anal fin blue. Alternating broad deep red and narrow silvery stripes on body. 1-6 spinules on posterior edge and 0-1 on anterior of nasal fossa. Preopercular spine 3/4 to nearly equal to orbit diameter. Four (4) oblique rows of scales on cheek. Body depth 2.7-3.0 in SL; head length 2.8-3.0 in SL; snout length 4.4-4.85 in head length; interorbital width 4.3-4.7 in head length; premaxillary groove extending slightly posterior to a vertical at anterior edge of orbit; anterior end of nasal bone ending in short spine that angles laterally; medial margin of nasal bone without spinule; 1-6 spinules at posterior edge of nasal fossa, 0-1 at anterior edge; up

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