Specimens were collected in calm waters during the minor dry season (June-August) because the river does not dry up completely during this season, contrary to during the major dry season (December to February).
Dorsal spines (total): 3; Dorsal soft rays (total): 8; Anal spines: 3; Anal soft rays: 5; Vertebrae: 26 - 27. This species is distinguished by the following characters: last unbranched dorsal-fin ray is flexible, simple, and not serrated barbels two pairs; circumpeduncular scales 12; complete lateral line with 24-26 scales; scales between the dorsal-fin origin and the lateral-line 4-5; no blackish vertical bars on flanks; a blackish well-marked midlateral band on the flanks with a distinct black spot to the center of the caudal-fin base; no spots on flanks; eye diameter, 26.2%-28.0% HL; body depth, 24.7%-26.6% SL .Cross section: compressed.
Behavioural data for Ruf's enteromis is currently being reviewed.
Diet information for Ruf's enteromis is currently being compiled.
Reproduction data for Ruf's enteromis is currently being compiled.
Freshwater; benthopelagic; depth range 0 - 1 m . Subtropical
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