| Standard length | Ls |
| Direct distance between the anterior edge of the lower lip and the anterior insertion of the dorsal fin | DALAD |
| Direct distance between the posterior insertion of the dorsal fin and the most posterior in lateral line | DPDPL |
| Horizontal distance between the most posterior in lateral line and the anterior insertion of the anal fin | HPLAA |
| Horizontal distance between the anterior edge of the lower lip and the anterior insertion of the ventral fin | HALAV |
| Horizontal distance between the anterior edge of the lower lip and the origin of the pectoral fin | HALOP |
| Direct distance between the anterior edge of the most anterior middle point of operculum and the most posterior aspect of operculum | DAAPO |
| Direct distance between the anterior edge of the upper lip and the most posterior aspect of operculum | DAUPO |
| Direct distance between the anterior edge of the lower lip and the anterior insertion of the dorsal fin | DALAD |
| Caudal peduncle height | CH |
| Body depth at the anterior insertion of the anal fin | BDAA |
| Body depth at the midpoint of the anal fin base | BDMA |
| Head width between the origin of the pectoral fins | HWOP |
| Head length between the anterior edge of the upper lip and the midpoint of head width | HL |
| Horizontal distance between the right end of lip and the left end of lip | HARL |
| Direct distance between the midpoint of head width and the right (left) maxilla barbel | DAHR(L)B |
| Direct distance between the midpoint of head width and the right (left) side of upper lip (the elongated point of first nostril) | DAHR(L)U |
| Direct distance between the midpoint of head width and the right (left) side of lower lip (the elongated point of first nostril) | DAHR(L)L |