Cá Tráp đuôi xám
Sparus berda

Thông tin chính
Phân bố
Mẫu vật & Tài liệu
Sinh học — Sinh thái BIO
Ghi chú chi tiết
Diagnosis. Distinguished from all congeners of Acanthopagrus by the following combination of characters: dorsalfin rays XI, 11; anal-fin rays III, 8 – 9; pored lateral line scales 41 – 43; scale rows above and below lateral line 3 ½ – 4 and 11 – 12, respectively; scale rows between the fifth dorsal-fin spine base and lateral line 3 ½; no scales on preopercular flange; total gill rakers 14 – 16, 8 – 10 on the lower limb; 2 nd anal-fin spine (2 AS) longer than 3 rd anal-fin spine, its ratio (2 AS / 3 AS) is 1.3 – 1.5 (mean 1.4); least infraorbital depth 4.2 – 4.4 % of SL; a strongly curved concavity (more so in fishes> 13 cm SL) on ventral edge of first two infraorbitals above rear end of maxilla (Fig. 2 A, B); silvery to blackish and sometime dark blackish in color.
