PARAPERCIS AUSTRALIS - (RANDALL, 2003)
Actinopterygii (Class) > Perciformes (Order) > Trachinoidei (Suborder) > Pinguipedidae (Family) > Parapercis (Genus)
Dorsal spines (total): 5; Dorsal soft rays (total): 20-21; Anal spines: 1; Anal soft rays: 17. D V,20-21 (rarely 20); A I,17; 14-16 (rarely 14 or 16) pectoral rays; 48-59 lateral-line scales; 3-4 + 6-8 gill rakers; 5-6 predorsal scales; ctenoid scales on cheek; front of lower jaw with 10 canine teeth; vomerine teeth in a broad chevron pattern; with palatine teeth; upper edge of subopercle with a prominent sharp spine; posterior edge of preopercle sometimes slightly irregular or partially finally serrate; body depth 4.35-4.9 in SL (20.5-23.0% SL); middle dorsal spine longest, 9.5-10.6% SL; membrane from last dorsal spine joined to base of first soft ray; slightly rounded caudal fin, 22.9-24.0% SL; A small and elongate bottom dwelling fish with a whitish-grey body, a series of dark brown blotches along the side, and a vertical bar beneath the eye. Max length : 9.2 cm. Depth range 1-15m.
Parapercis : Greek, para = the side of + Greek, perke = perch.
australis : Named for its southern distribution, south of 14° south latitude.
Until Parapercis australis was described (Randall 2003), this species was previously called as Parapercis cylindrica in Australia and New Caledonia.
Western Central Pacific: Queensland, Australia, Fiji, Tonga and New Caledonia.
Inhabits rubble and seagrass areas adjacent to coral reefs, especially in sheltered lagoons. A benthic carnivore feeding on crustaceans, polychaete worms and other invertebrates. The species is a protogynous hermaphrodite, capable of changing sex from female to male. Males maintain a harem-like breeding group of 2 to 10 females per male. Females defend territories from other females, whereas males defend larger areas that encompass the territories of all females in the harem.
Males are larger than females and individuals grow rapidly following transition from female to male.
Parapercis cylindrica (Bloch, 1792) - Reported from Ryukyu Island Andaman Sea to Micronesia and Samoa - Similar in colour to Parapercis australis with a yellow caudal fin.
Parapercis lineopunctata (Randall, 2003) - Reported from New Caledonia (Chesterfield Islands) - A black line runs from the front of upper lip to eye, sometimes with 1-3 iridescent pale blue lines on snout and cheek below eye. Max length: 7.4 cm SL. Depth range: 3 - 35 m.
Parapercis binotata (Allen & Erdmann, 2017) - Reported from Solomon Islands - Adult with conspicuous black band on rear edge of cheek and short black band on lower pectoral-fin rays; females with curved black band under eye along lower edge of suborbital.