Found in a small, clear-water stream with sandy bottom at an elevation of approximately 4,050 m . Feeds on aquatic insects .
Dorsal soft rays (total): 10 - 12; Anal soft rays: 9 - 11; Vertebrae: 38 - 39. Head and cheek musculature hypertrophied, head shape square in dorsal view; first pectoral fin ray prolonged as a thin, short filament; tip of pelvic fin when depressed not reaching the anus; pectoral fin rays 7-8; pelvic fin short, not extending posteriorly to reach the anus; premaxilla with outer row teeth incisiform, not spatulate .
Behavioural data for Trichomycterus Yuska is currently being reviewed.
Freshwater; benthopelagic. Subtropical South America: endemic to Argentina.
aquatic insects (Ref
Occurrence records from the Global Biodiversity Information Facility (GBIF) - 1 records indexed .
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