Sharp-toothed Sea-bass

distribution

Distribution and habitat. New Ireland: 1, 2. — General distribution: India east to Philippines and Papua New Guinea, north to southern Japan, south to northern Australia. Demersal on the continental slope, 186 – 630 m depth. Marine.

Checklist of the marine and estuarine fishes of New Ireland Province, Papua New Guinea, western Pacific Ocean, with 810 new records

materials_examined

Status at New Ireland. New record, based on NTUM 11069 (2 specimens, 60.7 – 62.4 mm SL, St. CP 4418 - 20 - 21, northeast of New Hanover), NTUM 11104 (1 specimen, 86.4 mm SL, St. CP 4428 - 6, northeast of New Hanover), NTUM 11256 (1 specimen, 86.4 mm SL, St. CP 4459 - 14, 8.5 km westnorthwest of Kavieng), and NTUM 11338 (1 specimen, 45.7 mm SL, St. CP 4495 - 5, northwest of New Hanover).

Checklist of the marine and estuarine fishes of New Ireland Province, Papua New Guinea, western Pacific Ocean, with 810 new records

description

Description. Counts and measurements are summarized in Tables 2 – 7. Snout bluntly pointed; interorbital space slightly convex. Posterior edge of maxilla almost straight to very weakly concave, with postero-dorsal and postero-ventral angles rounded to sharpened, and postero-ventral angle not extended; posterior rim of the maxilla vertical. Preopercular lobe without longitudinal ridges; denticles of hind margin serration variably expressed, not extending into crests on preopercular lobe; inner edge of preopercle with 2 – 5 small denticles not extending along ventral branch. Two anal-fin spines. First anal-fin pterygiophore broad, long, straight, with broad hollow tip, reaching last pair of pleural ribs. First haemal spine with a variably developed but mostly weak posterior expansion. Pelvic fin spine serrated along its outer edge; all other fin spines smooth. Dentition. Premaxilla with a pair of strong canines near symphysis, followed posteriorly by a wide band of minute teeth. Dentary with a pair of strong canines and a band of small conical teeth near symphysis, followed posteriorly by a row of small conical teeth and 2 – 4 enlarged canines. Vomer V-shaped with 1 – 2 rows of granu

Reappraisal of Synagrops Günther, 1887 with rehabilitation and revision of Parascombrops Alcock, 1889 including description of seven new species and two new genera (Perciformes: Acropomatidae)

diagnosis

Diagnosis. Small, moderately deep-bodied species with slightly convex dorsal head profile. Anal fin II + 7. Pectoral fin with 14 – 16 rays, pectoral-fin length 21.5 – 27.2 % SL. Gill rakers 15 – 18. Pseudobranchial filaments 15 – 24. First anal-fin pterygiophore long, straight, with rather broad hollow tip. Palatines and ectopterygoids narrow, usually with 1, rarely 2, rows of denticles. Orbital diameter 9.9 – 12.9 % SL. Snout about 65 – 90 % of orbital diameter. Posterior edge of maxillary plate straight. No longitudinal ridges on preopercular lobe. Otolith moderately elongate (OL: OH = 1.6 – 1.85).

Reappraisal of Synagrops Günther, 1887 with rehabilitation and revision of Parascombrops Alcock, 1889 including description of seven new species and two new genera (Perciformes: Acropomatidae)