| Main Ref. | Scott, W.B. and E.J. Crossman, 1998 |
| Appearance refers to | |
| Bones in OsteoBase |
| Specialized organs | |
| Different appearance | |
| Different colors | |
| Remarks |
| Striking features | none |
| Body shape lateral | elongated |
| Cross section | compressed |
| Dorsal head profile | more or less straight |
| Type of eyes | more or less normal |
| Type of mouth/snout | more or less normal |
| Position of mouth | terminal |
| Diagnosis |
Body elongate and tapering, compressed laterally but less so than lake whitefish, greatest body depth at front of dorsal fin. Head relatively short, never observed with nuchal hump; eye small, adipose eyelid distinct; snout length always greater than eye diameter; upper jaw or snout projecting slightly in large males |
| Ease of Identification |
| Lateral Lines | 1 Interrupted: No |
| Scales on lateral line | 91 - 100 |
| Pored lateral line scales | |
| Scales in lateral series | |
| Scale rows above lateral line | |
| Scale rows below lateral line | |
| Scales around caudal peduncle | |
| Barbels | 0 |
| Gill clefts (sharks/rays only) | |
| Gill rakers | |
| on lower limb | |
| on upper limb | |
| total | 23 - 27 |
| Vertebrae | |
| preanal | |
| total | 63 - 64 |
| Attributes | no striking attributes |
| Fins number | 1 |
| Finlets No. | Dorsal 0 - 0 |
| Ventral 0 - 0 | |
| Spines total | 0 - 0 |
| Soft-rays total | 10 - 12 |
| Adipose fin | present |
| Attributes | forked; more or less normal |
| Fins number | 1 |
| Spines total | 0 - 0 |
| Soft-rays total | 9 - 12 |
| Pectoral | Attributes more or less normal |
| Spines 0 | |
| Soft-rays 15 - 16 | |
| Pelvics | Attributes more or less normal |
| Position abdominal behind origin of D1 | |
| Spines 0 | |
| Soft-rays 11 - 12 |