Premnas biaculeatus (Bloch, 1790)
Spinecheek anemonefish

Palata

Premnas biaculeatus
photo by Patzner, R.

 Family:  Pomacentridae (Damselfishes), subfamily: Amphiprioninae
 Max. size:  17 cm TL (male/unsexed)
 Environment:  reef-associated; depth range 1 - 16 m, non-migratory
 Distribution:  Indo-West Pacific: Indo-Australian Archipelago including India, Burma, Thailand, Malaysia, Indonesia, Philippines, New Guinea, New Britain, Solomon Islands, Vanuatu, and Australia (northern Queensland).
 Diagnosis:  Dorsal spines (total): 10-10; Dorsal soft rays (total): 17-18; Anal spines: 2-2; Anal soft rays: 13-15. Description: Has a distinctive prominent preopercular spine that extends across the head-bar. Juveniles and males bright red, females become maroon to nearly black (Ref. 37816). Males are much smaller than females (Ref. 48636). Body depth 1.9-2.0 in SL (Ref. 90102).
 Biology:  Adults inhabit lagoon and seaward reefs (Ref. 9710), found mainly in protected coastal waters and lagoons. Typically found in pairs in which males are much smaller than females (Ref. 48636). Feed primarily on zooplankton and benthic algae (Ref. 4966). Oviparous, distinct pairing during breeding (Ref. 205). Eggs are demersal and adhere to the substrate (Ref. 205). Males guard and aerate the eggs (Ref. 205). Associated with the anemone Entacmaea quadricolor (Ref. 5911). Have been reared in captivity (Ref. 35404, 35413, 35420).
 IUCN Red List Status: Not Evaluated  (Ref. 96402)
 Threat to humans:  harmless
 Country info:  Recorded from Lanuza Bay (Ref. 104756) and San Juan, Batangas (Ref. 107854). Also Ref. 48613.

 Entered by: Capuli, Estelita Emily - 27.11.92
 Modified by: Luna, Susan M. - 21.07.11

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