Two terminal bulbs separated by a long interspace (usually 2.6-7.8 times length of distal bulb; 2.3-4 times of proximal bulb length). Barbel less than 60% SL. Terminal filament long, 16-21% SL with 4 or more short, bulblet-bearing branches near the bulb, the branches usually with expanded tips. Distal bulb shorter than proximal bulb in specimens over 9 cm SL; not more than 1.25 times the proximal bulb in smaller specimens, never longer than 1 mm. Axis of stem and external chevron-shaped or roundish striated areas moderately to darkly pigmented. Middorsal paired spots between occiput and dorsal-fin origin undetermined (Ref. 11333).