Main Ref. | Teugels, G.G., 1986 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | no special organs |
Different appearance | males alike females |
Different colors | males alike females |
Remarks |
Striking features | none |
Body shape lateral | elongated |
Cross section | circular |
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 | scales embedded or partly/completely absent |
Diagnosis |
Diagnosis: head oval-shaped in dorsal outline; snout slightly rounded; eyes dorsally located (Ref. 248). Frontal fontanella short and wide/squat (Ref. 248, 57129). Occipital fontanelle rather long and oval-shaped; "dermosphenotic" and supraorbital bones joined; tooth plates small; suprabranchial organ not well developed (Ref. 248). Distance between occipital process and dorsal-fin base short (4.9-9.3% of standard length); pectoral spine serrated on both sides (Ref. 57129). Coloration: live fish as well as preserved specimens very light-coloured: back and sides yellowish brown, belly lighter; some specimens show submarginal blackish marks on vertical fins (Ref. 57129). |
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 | 8 |
Gill clefts (sharks/rays only) | absent |
Gill rakers | |
on lower limb | |
on upper limb | |
total | 15 - 22 |
Vertebrae | |
preanal | |
total | 59 - 64 |
Attributes | extending over most of the back length |
Fins number | 1 |
Finlets No. | Dorsal 0 |
Ventral 0 | |
Spines total | 0 |
Soft-rays total | 72 - 89 |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | 1 |
Spines total | 0 |
Soft-rays total | 55 - 71 |
Pectoral | Attributes more or less normal |
Spines 1 | |
Soft-rays 8 - 11 | |
Pelvics | Attributes more or less normal |
Position abdominal behind origin of D1 | |
Spines 0 | |
Soft-rays 6 |