Main Ref. | Lévêque, C., 2003 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | different morphology in juveniles and adults |
Different colors | different colors in juveniles and adults |
Remarks | Different color in juveniles and adults reported from B. bynni occidentalis. |
Striking features | striking type of mouth |
Body shape lateral | fusiform / normal |
Cross section | compressed |
Dorsal head profile | more or less straight |
Type of eyes | more or less normal |
Type of mouth/snout | more or less normal |
Position of mouth | sub-terminal/inferior |
Type of scales | cycloid scales |
Diagnosis |
Diagnosis: last simple dorsal-fin ray forming ossified spine longer than head in specimens over 150 mm SL; scale formula 5.5/26-31/4.5-5.5; 2.5-3 scales between lateral line and middle of belly, behind pelvic-fin origin; 12 scales around caudal peduncle; dorsal fin with 4 unbrached and 9 branched rays; anal fin with 3 unbranched and 5 branched rays; pectoral fin with 16-19 rays; pelvic fin with 1 unbranched and 8 branched rays; 3-5/12-15 gill rakers on first gill arch (Ref. 2940, 81282). Description: large species, body rather deep in adults and slightly compressed; lips well developed, forming rounded mental disk; last simple dorsal-fin ray forms thick spine in adults; spine grows, being shorter than head in juveniles and longer than head in specimes over 150 mm SL; longest dorsal-fin ray is first branched ray; distal margin of dorsal fin slightly concave (Ref. 2940, 81282). Coloration: in life: sides yellowish tinged with orange, back greyish; fins more or less bright yellow except for caudal fin, which is orange in juveniles and medium-sized adults, and greyish in older fish; distal margins of dorsal and caudal fins black-edged (Ref. 2940, 81282). Preserved specimens: brownish (Ref. 2940, 81282). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | 26 - 31 |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | 5.5 |
Scale rows below lateral line | 4.5 - 5.5 |
Scales around caudal peduncle | 12 - 12 |
Barbels | 4 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | 3 - 5 |
on upper limb | 12 - 15 |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal 0 |
Ventral 0 | |
Spines total | |
Soft-rays total | |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | |
Soft-rays total | 8 - 8 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 16 - 19 | |
Pelvics | Attributes more or less normal |
Position abdominal beneath origin of D1 | |
Spines | |
Soft-rays 9 - 9 |