Pareiorhaphis scutula Pereira, Vieira & Reis, 2010

Family:  Loricariidae (Armored catfishes), subfamily: Hypoptopomatinae
Max. size:  9.05 cm SL (male/unsexed)
Environment:  benthopelagic; freshwater; depth range 0 - 1 m
Distribution:  South America: Brazil.
Diagnosis:  This species is distinguished from its congeners by having the following combination of characters: abdomen entirely covered with small platelets imbedded in skin and irregularly scattered from pectoral girdle to pelvic-fin insertions (vs. abdomen totally naked or with 1-4 small platelets on each side just posterior to gill opening in P. parmula and P. nasuta ); it is distinguished further from P. parmula by having 51-71 premaxillary teeth (vs. 31-48), 24-28 lateral plates in the median series (vs. 28-31), longer snout length (62.1-70.0 vs. 53.8-63.0% HL); from P. nasuta by having a shorter snout length 62.1-70.0 (vs. 71.1-75.6% HL) and a larger orbital diameter 11.9-14.8 (vs. 8.6-11.3% HL) (Ref. 84022).
Biology:  The area where most of the specimens were collected is a shallow creek (0.2-0.5 m depth and approximately 5 m wide) with rocky bottom, swift current, and clear water; most of the creek banks are deforested and covered with grasses. Other fish species collected syntopically were Trichomycterus sp., Geophagus brasiliensis, Neoplecostomus sp., and Astyanax sp. (Ref. 84021).
IUCN Red List Status: Least Concern (LC); Date assessed: 18 May 2022 Ref. (130435)
Threat to humans:  harmless

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