Main Ref. | Compagno, L.J.V. and V.H. Niem, 1998 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | elongated |
Cross section | angular |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | placoid scales |
Diagnosis |
This species is distinguished by the following characters: snout long and narrow; preoral length 35.1% (34.9-38.7%) head length; eye large, its length 18.5% (17.0-24.1%) HL; gill slit rather short, first gill slit height 47.8% (31.4-51.6%) eye length; anterolateral teeth straight to slightly oblique, blade-like, with 1-3 broad, smooth distal cusplets; first dorsal-fin origin does not reach to the vertical line through the pectoral-fin base; caudal-fin ventral lobe is moderately developed in adults. Colouration: body generally grey, with faint dark edges on dorsal-fin apexes, more prominent in juveniles (Ref. 127459). |
Ease of Identification |
Lateral Lines | 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 | |
Gill clefts (sharks/rays only) | |
Gill rakers | |
on lower limb | |
on upper limb | |
total | |
Vertebrae | |
preanal | |
total |
Attributes | |
Fins number | 2 |
Finlets No. | Dorsal 0 - 0 |
Ventral 0 - 0 | |
Spines total | 0 - 0 |
Soft-rays total | 0 - 0 |
Adipose fin | absent |
Attributes | heterocercal; asymmetric |
Fins number | 1 |
Spines total | 0 - 0 |
Soft-rays total | 0 - 0 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 0 - 0 | |
Pelvics | Attributes more or less normal |
Position abdominal behind origin of D1 | |
Spines 0 | |
Soft-rays 0 - 0 |