鉴别 |
Body compressed; mouth somewhat oblique; maxillary reaching to below middle of pupil and lager than eye diameter; lower jaw included in upper jaw; teeth in jaws in 3 to 5 rows, anteriorly about 6 (or 7) curved canines in the upper jaw and 6 in the lower jaw; upper and lower molar teeth strongly developed, subequal in size except some progressively larger posteriorly and some progressively smaller anteriorly and posteriorly, in upper jaw up to 5 rows and lower jaw up to 4 rows; suborbital depth slightly shorter than dermal eye opening (clearly shorter than dermal eye opening); 5 (or 6) irregular transverse rows of scales on preoperculum; anterodorsal profile from just above eye ascending gently and curved; anteriormost margin of head scalation rounded when viewed from above, reaching to just beyond posteriormost margin of orbit and without small scales anterior to scalation margin; dorsal-fin spines strong, first slightly longer than half length of second spine, which is shorter than third spine; fourth or fifth spine longest; longest soft dorsal-fin ray shorter than longest spine in dorsal fin; first anal-fin spine short, its length much less than eye, robust, not flattened; second anal-fin spine length clearly less than head without snout; third anal-fin spine shorter than second spine, which is slightly longer than snout; first anal-fin ray subequal to second anal-fin spine and slightly longer than third spine; pectoral-fin tip nearly reaching to first anal-fin spine base vertically, its length clearly greater than head length; longest pelvic-fin ray clearly less than head; pelvic-fin spine longer than snout (Ref. 82482). |