The longfin grouper (Epinephelus quoyanus), also known as the longfin rockcod, bar-breasted rock-cod, Gilbert's rock-cod, honeycomb rockcod, spotted groper or wirenet cod, is a species of marine ray-finned fish, a grouper from the subfamily Epinephelinae which is part of the family Serranidae, which also includes the anthias and sea basses. It is found in the Western Pacific Ocean. Description The longfin grouper has a body with a standard length which is 2.8 to 3.2 times its depth. The dorsal profile of the head is smoothly curved. The preopercle is rounded or subangular while the gill cover has a nearly straight upper edge. The dorsal fin contains 11 spines and 16-18 soft rays while the anal fin has 3 spines and 8 soft rays. The caudal fin is rounded while the pectoral fin is around twice the length of the head. The overall colour is whitish on the head, body and fins and it is marked with many sizeable closely set hexagonal to roundish dark brown to blackish spots. On the upper head and body the spots are closer together and form a reticulated pattern while on the lower head and body the spots are more widely spaced and they are less well defined. There is a pattern of similar dark spots on dorsal, anal and caudal fins. There are tow dark bands on the breast which join underneath the pectoral fin and almost join at the gill slitcreating an isolated pale patch on the ventral part of the breast and there is another pale area between the upper dark and a dark blotch that normally covers most of the base of the pectoral fin. There are irregular dark brown bands and blotches on the throat and the ventral surface of the breast., The dark spots on the head are smaller towards the snout but these are always notably larger than the nostrils, and there is a squarish white or pale area on the cheek at rear end of the upper jaw. The rear margin of pectoral, anal and caudal fins is mostly dusky with faint dark spots while the front margin leading edge of pelvic fins with white line and broad blackish submarginal band. This species attains a maximum total length of . Distribution The longfin grouper is found in the Indo-West Pacific, especially in the Indomalayan region. In the Indian Ocean it has only been recorded from the Andaman