Hypoptopoma incognitum Aquino & Schaefer, 2010

Collins, Rupert A., Duarte Ribeiro, Emanuell, Nogueira Machado, Valeria, Hrbek, Tomas & Farias, Izeni Pires, 2015, A preliminary inventory of the catfishes of the lower Rio Nhamunda, Brazil (Ostariophysi, Siluriformes), Biodiversity Data Journal 3, pp. 4162-4162: 4162

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Hypoptopoma incognitum Aquino & Schaefer, 2010


Hypoptopoma incognitum Aquino & Schaefer, 2010 


Type status: Other material. Occurrence: catalogNumber: 43865; recordedBy: Valéria Nogueira Machado; Emanuell Duarte Ribeiro; Rupert A. Collins; individualCount: 13; otherCatalogNumbers: UFAM:CTGA:14306; UFAM:CTGA:14307; UFAM:CTGA:14308; UFAM:CTGA:14309; UFAM:CTGA:14310; associatedSequences: KP772573; Taxon: scientificName: Hypoptopoma incognitum Aquino & Schaefer, 2010; kingdom: Animalia; phylum: Chordata; class: Actinopterygii; order: Siluriformes; family: Loricariidae; genus: Hypoptopoma; specificEpithet: incognitum; scientificNameAuthorship: Aquino & Schaefer, 2010; Location: country: Brazil; stateProvince: Pará; locality: Lower Nhamunda River ; decimalLatitude: -2.17525; decimalLongitude: -56.7115; geodeticDatum: WGS84; Identification: identifiedBy: Rupert A. Collins; Event: eventDate: 2013-11; Record Level: institutionCode: INPA; basisOfRecord: PreservedSpecimenGoogleMaps 


Identification to species level follows Aquino and Schaefer (2010) based on the following characters: flattened head with eyes placed ventrolaterally and visible from below; laterally expanded nuchal plate; six pairs of lateral abdominal plates posterior to coracoids; thoracic plates present; three midventral plates between cleithral posterior process and first plate of ventral series; anal shield composed of single plate; second infraorbital laterally contacting to two ventral dermal plates; patch of odontodes present on anterolateral aspect of cleithrum at opening to branchial chamber; and caudal fin with series of around three dark bands (irregular in our specimens).

Thirteen individuals were caught by hand from submerged terrestrial vegetation (sampling site NH02). An example of a live specimen is pictured in Fig. 13.