Diagnosis: lateral line short, rarely longer than 28% SL, most commonly 18-22% SL; nearly always 6 pelvic-fin rays; generally 2 sensory pores between inner mental barbels; caudal saddle and bar pattern absent; no sharply defined pectoral fin markings (Ref. 44050).

Description: 16-28 abdominal vertebrae; 21-23 caudal vertebrae; 18 caudal-fin rays (arrangement ii-7-7-ii) (Ref. 44050).

Coloration: body and head bicolored; dorsum and flank brown or grey, venter tan; dorsum and flank well-marked with fine spots and larger blotches (up to 5-6 times an eye diameter), with few if any spots on venter; pectoral and pelvic fins light brown or grey in adults; anal fin opaque (whitish) with a dusky patch covering posterior half or third of fin and pale distal margin; caudal fin light brown or grey (close to flank color) with pale distal margin and pale basal crescent; juveniles colored as adults with no hint of caudal saddle and bar pattern (Ref. 44050).