Main Ref. | Iwamoto, T. and A. Williams, 1999 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | |
Type of scales | |
Diagnosis |
Head broad, shallow, interorbital 31-34% of HL; snout 36-42% HL, with paired tubercular scales at tip; suborbital 17-20% HL; ridge lacking stout scutelike scales; jaws short, upper jaw 24-28% HL, inferior; tooth rows short, crescent -shaped, outer premaxillary series enlarged. Cephalic sensory canal moderately dilated, lacking open pores; lateral line canal with modified scales, interrupted in places. Trunk scales small (11-13 rows between origin of first dorsal fin and lateral line), bearing erect spinules in no particular arrangement; scales along dorsal fins larger than surrounding ones; head completely scaled, including patches on gular and branchiostegal membranes. Spinous second ray of first dorsal fin with small serrations; outer ray of pelvic fins elongated. Anus midway between bases of anal and pelvic fins; periproct narrow; no dermal window of light organ. Eleven trunk vertebrae (Ref. 35909). |
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 | 2 - 2 |
Soft-rays total | 0 - 0 |
Adipose fin | absent |
Attributes | pointed |
Fins number | 1 |
Spines total | |
Soft-rays total |
Pectoral | Attributes more or less normal |
Spines 0 | |
Soft-rays 16 - 18 | |
Pelvics | Attributes other (see remarks) |
Position thoracic beneath origin of D1 | |
Spines 0 | |
Soft-rays 8 - 9 |