About Lethrinus olivaceus Valenciennes, 1830
Lethrinus olivaceus Valenciennes, 1830 has a body whose standard length is 2.8 to 3.4 times its depth, and it has an elongated snout. Large individuals may develop a hump on the snout in front of the eyes. Its dorsal fin is supported by 10 spines and 9 soft rays, while its anal fin is supported by 3 spines and 8 soft rays. The teeth along the sides of the jaws are conical. The inner axilla of the pectoral fin has no scales. The species is overall colored olive grey, with scattered irregular dark blotches across the body, and sinuous dark lines on the snout. The maximum published total length for this species is 100 cm (39 in), though 70 cm (28 in) is a more typical adult length.
This species is widespread across the Indo-West Pacific, ranging from the Red Sea and East Africa to Samoa and the Ryukyu Islands. It is a reef-associated species that lives in lagoons, sandy coastal areas, and reef slopes, at depths between 1 and 185 m.
