A preliminary inventory of the catfishes of the lower Rio Nhamunda, Brazil (Ostariophysi, Siluriformes) Author Collins, Rupert A. Author Duarte Ribeiro, Emanuell Author Nogueira Machado, Valeria Author Hrbek, Tomas Author Farias, Izeni Pires text Biodiversity Data Journal 2015 3 4162 4162 http://dx.doi.org/10.3897/BDJ.3.e4162 journal article http://dx.doi.org/10.3897/BDJ.3.e4162 1314-2828-3-4162 Pseudoloricaria laeviuscula (Valenciennes, 1840) Materials Type status: Other material . Occurrence: catalogNumber: 43870 ; recordedBy: Valeria Nogueira Machado; Emanuell Duarte Ribeiro; Rupert A. Collins ; individualCount: 3 ; otherCatalogNumbers: UFAM:CTGA:14541; UFAM:CTGA:14542; UFAM:CTGA:14543; associatedSequences: KP772602; Taxon: scientificName: Pseudoloricaria laeviuscula (Valenciennes, 1840); kingdom: Animalia; phylum: Chordata; class: Actinopterygii; order: Siluriformes; family: Loricariidae; genus: Pseudoloricaria; specificEpithet: laeviuscula; scientificNameAuthorship: (Valenciennes, 1840); Location: country: Brazil ; stateProvince: Para ; locality: Lower Nhamunda River ; decimalLatitude: -2.02386 ; decimalLongitude: -56.78235 ; geodeticDatum: WGS84; Identification: identifiedBy: Rupert A. Collins; Event: eventDate: 2013-11 ; Record Level: institutionCode: INPA ; basisOfRecord: PreservedSpecimen Type status: Other material . Occurrence: catalogNumber: 43895 ; recordedBy: Valeria Nogueira Machado; Emanuell Duarte Ribeiro; Rupert A. Collins ; individualCount: 4 ; otherCatalogNumbers: UFAM:CTGA:14042; UFAM:CTGA:14043; UFAM:CTGA:14046; UFAM:CTGA:14047; Taxon: scientificName: Pseudoloricaria laeviuscula (Valenciennes, 1840); kingdom: Animalia; phylum: Chordata; class: Actinopterygii; order: Siluriformes; family: Loricariidae; genus: Pseudoloricaria; specificEpithet: laeviuscula; scientificNameAuthorship: (Valenciennes, 1840); Location: country: Brazil ; stateProvince: Para ; locality: Lower Nhamunda River ; decimalLatitude: -1.6909 ; decimalLongitude: -57.42231 ; geodeticDatum: WGS84; Identification: identifiedBy: Rupert A. Collins; Event: eventDate: 2013-11 ; Record Level: institutionCode: INPA ; basisOfRecord: PreservedSpecimen Type status: Other material . Occurrence: catalogNumber: 33893 ; recordedBy: Raphael Leitao ; Henrique Lazzarotto ; individualCount: 1 ; Taxon: scientificName: Pseudoloricaria laeviuscula (Valenciennes, 1840); kingdom: Animalia; phylum: Chordata; class: Actinopterygii; order: Siluriformes; family: Loricariidae; genus: Pseudoloricaria; specificEpithet: laeviuscula; scientificNameAuthorship: (Valenciennes, 1840); Location: country: Brazil ; stateProvince: Para ; locality: Lower Nhamunda River ; decimalLatitude: -1.99972 ; decimalLongitude: -56.51611 ; geodeticDatum: WGS84; Identification: identifiedBy: W. Ohara; Rupert A. Collins; identificationQualifier: aff. laeviuscula; Event: eventDate: 2009-09-23 ; Record Level: institutionCode: INPA ; basisOfRecord: PreservedSpecimen Notes Identification to species level follows Isbruecker and Nijssen (1976) and Covain and Fisch-Muller (2007) based on the following characters: lower lip bilobate with median furrow; whip on upper caudal spine absent; abdomen covered with small plates lacking organisation; elliptical area of abdominal plates at level of pelvic girdle absent; rostrum not strongly pronounced; pelvic-fin spine longer than last pelvic-fin branched ray; colouration comprising dark dots (except ventral surface and anal fin); lower lobe of caudal darker than upper; and basicaudal spot present in juveniles. Three adult individuals were caught by hand-net at night over a sandy/silty substrate (sampling site NH12), and four juveniles were caught further upstream on the sandy margins of the river (sampling site NH05). An example of a live adult specimen is pictured in Fig. 27. One further specimen record of this species was obtained from the fish collection at INPA; this individual had been identified as P. aff. laeviuscula , but we include it here under P. laeviuscula until further information becomes available.