Main Ref. | Williams, J.T., 1988 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | Pectoral and pelvic fins yellow in males, red in females (in Enewak Atoll) (Ref. 529). |
Striking features | |
Body shape lateral | elongated |
Cross section | oval |
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 | terminal |
Diagnosis |
Diagnosis: Dorsal fin XI-XIII (usually XII), 13-15, deeply incised above last spine, first spine almost equal to second; anal fin II, 14-16 (usually 15); pectoral rays 15; pelvic fin I, 3; caudal fin procurrent rays 9-12. Vertebrae 10 + 19-20; last pleural rib on 11th, last epipleural rib on 15-19th vertebral centrum. Without scales and scalelike flaps. LL tubes 2-9 (usually 4-7), series ends below dorsal fin ray 7 or after. Lower lip smooth mesially, plicate laterally. Upper lip crenulae 32-45. Gill rakers 18-25. Cephalic sensory pore system complex; 1 pore behind nuchal flap. Cirri supraorbital 4-15, nasal 5-24; nuchal 32-44. Nuchal cirri in 4 groups with slightly expanded nuchal flap. Head reticulated with pale grey spots. Iris inner ring yellow, outer ring red. Body dark brown with 12 pale grey bars. Juvenile tan above, white to lavender below, with broad dark midlateral stripe, white eye bar, yellow spots on head underside and on operculum. No geographical variation recorded but secondary sexual dichromatism was found (Ref. 529, 90102). Three color pattern variation noted in Ref. 635. |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | |
Scales in lateral series | |
Scale rows above lateral line | |
Scale rows below lateral line | |
Scales around caudal peduncle | |
Barbels | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 18 - 25 |
Vertebrae | |
preanal | 10 - 10 |
total | 29 - 31 |
Attributes | extending over most of the back length |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 11 - 13 |
Soft-rays total | 13 - 15 |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | 1 |
Spines total | 2 - 2 |
Soft-rays total | 14 - 16 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 14 - 16 | |
Pelvics | Attributes more or less normal |
Position thoracic before origin of D1 | |
Spines 1 | |
Soft-rays 3 - 3 |