Psammoperca datnioides Richardson, 1848
Waigieu sea perch

Family:  Latidae (Lates perches)
Max. size:  21.4 cm SL (male/unsexed)
Environment:  reef-associated; brackish; marine
Distribution:  Indo-West Pacific: Australia.
Diagnosis:  Dorsal spines (total): 8-8; Dorsal soft rays (total): 12-12; Anal spines: 3-3; Anal soft rays: 8-8. This species is diistinguished from P. waigiensis by the following set of characters: whole of head and body dense black or brownish colour; pored lateral-line scales same colour of other scales of body, not yellow-edged like P. waigiensis, same dark colour persisting even in preserved specimens; pored lateral-line scales, 49-54; hind margin of maxilla reaching vertically beyond center of eye when mouth is closed; pelvic-fin spine slightly longer than 4th dorsal spine; circumpeduncular scales 25-26; shallower body depth, 23-30% (mean 28%) of SL; greater number of scale rows above and below lateral line 6½ / 11½-12½; gill rakers 7 (including 6 rudiments) + 1 + (12-14 (3-4 rudiments) = 20-24 (9-10 rudiments); last dorsal-fin spine / penultimate dorsal-fin spine 0.9-1.1 (Ref. 124584).
Biology: 
IUCN Red List Status: Not Evaluated (N.E.) Ref. (130435)
Threat to humans:  harmless


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