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Nathan Lujan (3)

Description: Placed in the Hypostoumus cochliodon species group which have a shorter body and more high backed than other members of the Hypostomus. They have a small number of spatulate teeth with a single cusp with the jaws arranged in a V shape.The Hypostomus genus has 7 rays to the dorsal fin whereas the similar looking Pterygoplichthys species have 10 dorsal fin rays. Hypostomus pyrineusi is distinguished from most members of the H. cochliodon group except some H. cochliodon, H. levis, H. ericius, H. oculeus, and H. taphorni by having 0 - 10 (usually 0; Fig. 2 B) odontodes on the opercle (vs. 11 or more). Hypostomus pyrineusi further differs from H. hemicochliodon and H. sculpodon by lacking a ridge on the pterotic-supracleithrum, by the presence of large, spoonshaped teeth (vs. teeth intermediate; Fig. 1 C vs. B), and a lack of a buccal papilla; from H. ericius, H. hemicochliodon, H. oculeus, and H. sculpodon by lacking strong, sharp keels on the lateral plates; from H. levis by having an adipose fin; from H. cochliodon by having the spots more numerous and close-set on the body (vs. spots absent or widely spaced); and from H. taphorni by having pigmentation on the lobes of the caudal fin equally distributed (vs. lower lobe darker than upper) - Armbruster (2003). Aquarium Care: As with most of this genus, will do well in a larger aquarium of 120cm (4ft) or over with the aquarium well filtered. Water parameters can be quite diverse for this genera. Peaceful species that will dig up plants with their constant burrowing in the substrate so better to put plants in pots. Diet: Omnivore with a liking for green, tablet and frozen foods. This species is also a lover of wood which should be provided for in the aquarium. Etymology: The specific name pyrineusi: In honour of Miranda Ribeiro’s good friend Lieut. Antonio Pyrineus de Souza (d. 1936), a naturalist with the Rondon Commission to install telegraph poles from Mato Grosso to Amazonas, which included expedition that collected type.

Madeira pleco

Cochliodon pyrineusi

Loricariidae

South America: Madeira, Napo, Ucayali, Marañon and upper Amazon River basins. Type locality: provavelmente Jamary [Brazil].

23.0cm. (9ins)

23-29°c (73-85°f.)

6.0-7.5.

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2015. FishBase. World Wide Web electronic publication. www.fishbase.org, (11/2018).
Jonathan W. Armbruster (2003): The species of the Hypostomus cochliodon group (Siluriformes: Loricariidae). Zootaxa 249: 1-60.
Lujan, Nathan, Facebook post and information 2018.
Salvador, G.N. 2023. Hypostomus pyrineusi. The IUCN Red List of Threatened Species 2023.
Seidel, I. 2008. Back to Nature guide to L-catfishes, Ettlingen, Germany 208 p.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.
Weber, C., 2003. Loricariidae - Hypostominae (Armored catfishes). p. 351-372. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.