Main Ref. | Lévêque, C., 2003 |
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 | fusiform / normal |
Cross section | compressed |
Dorsal head profile | clearly convex |
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 smooth on hind margin; scale formula -/20-23/-; 8(9) scales around caudal peduncle; scales in mid-lateral series with small black spots; 7 branched dorsal fin rays; no barbels; lateral line absent; maximum reported size 19 mm SL (Ref. 2940, 81282). Description: very small species with slightly compressed body; mouth small, subterminal, protrusible downwards, without visible barbels; no pored scales in lateral line; 20-23 scales in longitudinal series, 20 around body, 8 (9) around caudal peduncle; D: III,7; A: III,5; V: I,5 (Ref. 2940, 81282). Coloration: edges of scales on back and sides lined with melanophores, forming dark network; small, irregular concentrations of melanophores on scales of mid-lateral series; fine line of melanophores along myoseptum and very distinct black spot at end of caudal (Ref. 2940, 81282). |
Ease of Identification |
Lateral Lines | 1 Interrupted: No |
Scales on lateral line | |
Pored lateral line scales | 0 - 0 |
Scales in lateral series | 20 - 23 |
Scale rows above lateral line | |
Scale rows below lateral line | |
Scales around caudal peduncle | 8 - 9 |
Barbels | 0 |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | no striking attributes |
Fins number | 1 |
Finlets No. | Dorsal |
Ventral | |
Spines total | 0 - 0 |
Soft-rays total | 10 - 10 |
Adipose fin | absent |
Attributes | forked; more or less normal |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 8 - 8 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays | |
Pelvics | Attributes more or less normal |
Position abdominal behind origin of D1 | |
Spines 0 | |
Soft-rays 6 - 6 |