Amphilius Nigricaudatus (Amphilius nigricaudatus), first described by Pellegrin, 1909 is a small fish in the family Amphiliidae (order Siluriformes). Adults typically reach 7.30 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Tropical waters. It is broadly omnivorous, taking invertebrates, plant matter, and detritus.
Dorsal spines (total): 0; Dorsal soft rays (total): 7; Anal spines: 0; Anal soft rays: 7. Diagnosis: caudal fin with large, central black disc; pigmentation variable, from uniformly dark brown or brown with small spots to highly vermiculated; origin of dorsal fin one head length behind head; dorsal fin base extends behind origin of pelvic fin origin; dorsal fin leading ray distinctly shorter than leading edge of fin; caudal fin with 6 + 7 principal rays; caudal peduncle short (6-7.5 times in SL) and deep (length 1-1.6 times depth); snout shorter than post-orbit length; eyes placed equidistant from hind margin of head and tip of snout (mid-way along head) or nearer to tip of snout . : elongated.
Behavioural data for Amphilius Nigricaudatus is currently being reviewed.
Freshwater; demersal. Tropical
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