| Main Ref. | Andriyashev, A.P., 1994 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | |
| Body shape lateral | elongated |
| Cross section | oval |
| Dorsal head profile | |
| Type of eyes | |
| Type of mouth/snout | |
| Position of mouth | |
| Type of scales | |
| Diagnosis |
This species is characterized by the following: ventral mouth transverse; strongly reduced eyes (2.3-2.6% SL); very distinctive cephalic seismosensory pores; with coronial pore, 2 postcoronal pores, 3 pores in the temporal canal and 1 suprabranchial; head ca. 24% anteanal distance 37-38%, disk 9-10% SL; unpigmented branchial cavity and mouth, peritoneum and organs in abdominal cavity (Ref. 44814). |
| 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 | 12 - 12 |
| total | 56 - 58 |
| Attributes | |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 49 - 53 |
| Adipose fin | absent |
| Attributes | more or less truncate; confluent |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 44 - 46 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 31 - 31 | |
| Pelvics | Attributes part of sucker-disc |
| Position thoracic | |
| Spines 0 | |
| Soft-rays 0 - 0 |