Main Ref. | Hutchins, J.B. and S. Morrison, 2004 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks |
Striking features | |
Body shape lateral | eel-like |
Cross section | circular |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | terminal |
Type of scales | |
Diagnosis |
Diagnosis: Pelvic fins absent. Gill slit large. Postocular pore none; anterior, lacrymal, and posterior nasal pores absent. Vertebrae total 70, precaudal 23; last epineural on the 40th vertebra. Caudal rays 8. Dorsal origin posterior to the anus. This species differs from its congeners in having a moderately large gill opening (3.1-4.3 in HL); lack of a pelvic-fin rudiment, absence of all cephalic pores in the lateral-line system, and its large number (40) of epineural ribs. It possesses a short, blunt head with wide lips (giving it a rather pugnacious appearance), and short dorsal and anal fins (Ref. 56640). |
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 | 23 - 23 |
total | 70 - 70 |
Attributes | |
Fins number | |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | |
Adipose fin |
Attributes |
Fins number | |
Spines total | |
Soft-rays total |
Pectoral | Attributes |
Spines | |
Soft-rays | |
Pelvics | Attributes |
Position | |
Spines | |
Soft-rays |