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  • Colossimystax pectegenitor
  • Colossimystax pectegenitor
  • Colossimystax pectegenitorClose-up of mouth
  • Colossimystax pectegenitor
  • Colossimystax pectegenitorHolotype
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Scientific Name Colossimystax pectegenitor    Lujan, Armbruster & Sabaj Pérez, 2007
Common Names L261, Longspined Stream Pleco
Langpigget Strømsugemalle (Denmark)
Type Locality Río Casiquiare, 73 kilometers northeast of San Carlos de Río Negro, 2°21'09"N, 66°34'31"W, Amazonas, Venezuela.
Synonym(s) Pseudancistrus pectegenitor
Etymology This specific epithet refers to the hypertrophied odontodes (pecten=quill) of the snout, pectoral spine and evertible cheek plates plus the fact that one adult male was presumably collected while caring(genitor=father) for a large brood of young.
Hop to next section Species Information
Size 242mm or 9.5" SL. Find near, nearer or same sized spp.
Sexing Males possess greatly elongated evertible cheek odontodes as well as slightly elongated odontodes on the pectoral spines and snout.
Hop to next section Habitat Information
Distribution South America: main channel of the Rio Orinoco above Raudales Autures and Rio Casiquaire in Venezuela.
Orinoco, Upper Orinoco (click on these areas to find other species found there)
Amazon, Middle Amazon (Solimoes), Negro, Upper Negro, Casiquiare (click on these areas to find other species found there)

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IUCN Red List Category
Not Evaluated
Hop to next section Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Ichthyological Exploration of Freshwaters v. 18 (no. 2), pp 164, Figs. 1b, 2-3.
Registered Keepers There is no registered keeper.
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There are 2 records of this fish being seen, view them all.
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Last Update 2025 Jan 10 10:34 (species record created: 2007 Jan 25 17:50)