Otothyropsis Dialeukos (Otothyropsis dialeukos), first described by Calegari, Morlis & Reis, 2017 is a tiny fish. Adults typically reach 3.60 cm in maximum length. It inhabits freshwater systems including rivers, streams, and lakes. It occurs in Subtropical waters. It feeds primarily on plankton, plant material, and detritus.
Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 6; Vertebrae: 28. : elongated.
Behavioural data for Otothyropsis Dialeukos is currently being reviewed.
Freshwater; demersal. Subtropical South America: Arroyo Itá, a tributary to the Embalse de Acaray, upper Río Paraná basin in Paraguay.
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