Trichomycterus ramosus Fernández, 2000

Family:  Trichomycteridae (Pencil or parasitic catfishes), subfamily: Trichomycterinae
Max. size:  6.68 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater
Distribution:  South America: Laguna Blanca basin in Argentina.
Diagnosis:  Vertebrae: 38-39. Body dark brown, covered with minute papillae. Some or all barbels distally branched one or more times, retaining a constant width along its length. Oval premaxilla shorter than maxilla. Teeth arranged in 2 rows. Pectoral fin rounded. Dorsal fin with 3-4 procurrent and 6-7 principal rays. Anal fin with 3 procurrent and 8-9 principal rays. Caudal fin truncate with 9-12 dorsal procurrent, 13 principal and 10-11 ventral procurrent rays (Ref. 45128).
Biology:  Collected from a pre-andean stream of clear water, with shallow, sandy bottom, and with vegetation along margins, at an elevation of about 3,680 m above sea level. Specimens were hiding in the sand. Stomach contents include mainly chironomid larvae (Diptera) and amphipod remains and sand (Ref. 45128),
IUCN Red List Status: Critically Endangered (CR); Date assessed: 27 October 2020 (B2ab(iii)) Ref. (130435)
Threat to humans:  harmless


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