Etsaputu relictum Lujan, Armbruster & Rengifo, 2011

Family:  Loricariidae (Armored catfishes), subfamily: Hypostominae
Max. size: 
Environment:  demersal; freshwater
Distribution:  South America: Upper Marañon River in northern Peru.
Diagnosis:  Distinguished from all species of Hypostominae by having a coracoid with a serrated posterior margin of the posterior process, an opercle with a process extending ventrolaterally from the ventral margin, and branchiostegals one and two fused. Differs further by having the following characters: cheek plates evertible to less than 45° from the sagittal plane; fewer than ten (typically zero or six) enlarged cheek-plate odontodes; enlarged cheek-plate odontodes straight and no longer than 15 times length of odontodes on lateral body plates; large eyes (mean 24.0% of head length, range 21.7-27.6% HL); and by having uniformly gold-brown to bronze base color with golden sheen when alive (Ref. 88957).
Biology: 
IUCN Red List Status: Least Concern (LC); Date assessed: 24 April 2014 Ref. (130435)
Threat to humans:  harmless


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