Main Ref. | Compagno, L.J.V., D.A. Ebert and M.J. Smale, 1989 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | elongated |
Cross section | compressed |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | other (see Diagnosis) |
Position of mouth | sub-terminal/inferior |
Type of scales | placoid scales |
Diagnosis |
Diagnosis: A heavily-bodied sawfish with a short but massive saw which is broad-based, strongly tapering and with 14-22 very large teeth on each side; space between last 2 saw-teeth on sides less than 2 times space between first 2 teeth (Ref. 5578). Pectoral fins high and angular, 1st dorsal fin mostly in front of pelvic fins, and caudal fin with pronounced lower lobe (Ref. 5578). Description: Body shark-like; head and forebody depressed; caudal region compressed (Ref. 52193). Saw relatively short and broad, length 5 times width of base in mature specimens, 17-22 widely spaced teeth on either side (Ref. 52193). Mouth ventral, straight, numerous small teeth in bands; gill slits underneath, behind origin of pectoral fins (Ref. 52193). Pectoral fins large, triangular, extending onto the sides of the head; 2 dorsal fins, origin of first dorsal fin well in front of origin of pelvic fins; anal fin absent; caudal fin with distinct lower lobe (Ref. 52193). Colouration: Greenish, grey, olive or golden-brown above, dirty cream below (Ref. 5578, 52193). |
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) | 5 |
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 | |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | |
Spines total | 0 - 0 |
Soft-rays total | 0 - 0 |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays | |
Pelvics | Attributes more or less normal |
Position abdominal behind origin of D1 | |
Spines 0 | |
Soft-rays |