Main Ref. | Du, L.-N., X.-Y. Chen and J.-X. Yang, 2008 |
Appearance refers to | |
Bones in OsteoBase |
Specialized organs | |
Different appearance | |
Different colors | |
Remarks | A single specimen with genital papilla located immediately posterior to the anus; gonad of males opens at the end of a fleshy prominence (Ref. 75196). |
Striking features | |
Body shape lateral | |
Cross section | |
Dorsal head profile | |
Type of eyes | |
Type of mouth/snout | |
Position of mouth | sub-terminal/inferior |
Type of scales | |
Diagnosis |
Differs from all members of the genus Oreonectes by the absence of eyes, pelvic fin with 4 branched rays and caudal fin with 12 branched rays (Ref. 75196). Dorsum of head flat; entire body without scales and no color; absence of cephalic lateral-line system; caudal fin truncate (Ref. 75196). Anterior section of body strong and long, cylindraceous but slightly depressed, posterior part compressed; head wide and rounded, depressed; barbels 3 pairs, rostral one 2 pairs and maxillary one 1 pair. Dorsal fin located rather backward and its origin opposite behind base of pelvic fin (Ref. 45563). Description: D ii,7; A ii,5; P i+10; V i+4 (Ref. 75196). |
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 | |
Finlets No. | Dorsal |
Ventral | |
Spines total | |
Soft-rays total | 9 - 9 |
Adipose fin | absent |
Attributes | more or less truncate; more or less normal |
Fins number | |
Spines total | |
Soft-rays total | 7 - 7 |
Pectoral | Attributes more or less normal |
Spines | |
Soft-rays 11 - 11 | |
Pelvics | Attributes more or less normal |
Position abdominal before origin of D1 | |
Spines | |
Soft-rays 5 - 5 |