Sargocentron spiniferum is the largest squirrelfish in its range and can reach up to 51 cm (20 in) in length and 2.6 kg (5.7 lb) in weight (the Atlantic Holocentrus adscensionis can surpass the length, but it is slimmer). A more common length for S. spiniferum is 35 cm (14 in). The body is oval and laterally compressed. The head has a pointed snout and large eyes, being largely nocturnal. The basic colour is bright red. It has silver scale margins, a spinous dorsal fin and a large deep red patch just behind the eyes. The lower jaw protrudes beyond the upper jaw. It bears a very long preopercle spine (near the gill-opening). The anal and ventral fins are yellowish. The caudal fin is clearly bifid.
Sargocentron spiniferum's facts
Sargocentron spiniferum's Behavior & Ecology
This species is widespread throughout the tropical Indo-Pacific, from the Red Sea and Indian Ocean up to Hawaii, Japan and southern Australia. A solitary species that inhabits a variety of reef zones from reef flats to lagoon and seaward reefs to a depth of at least 122 m. Found under ledges during the day. Largest species of squirrelfish and the highest-bodied Sargocentron. Juvenile inhabits shallow protected reefs.
Sargocentron spiniferum's Feeding
This species is a nocturnal species that feeds on crabs, shrimps and small fishes.
Sargocentron spiniferum habitat
Sargocentron spiniferum is a solitary, benthopelagic species that inhabits a variety of reef habitats from reef flats to lagoon and seaward reefs and is found under ledges where it shelters during the day (Leiske and Myers 1994, Randall 1998). Juveniles of this species inhabit shallow protected reefs (Lecchini et al. 2013). Sargocentron spiniferum is nocturnal and feeds on crabs, shrimps and small fishes (Randall 1998). The maximum recorded length of this species is 51 cm FL (IGFA 2001) and it is the largest of the holocentrids (Randall and Greenfield 1999).