SCOTCAT.COM

your internet guide to all things catfish

Rhamdella eriarcha (Eigenmann & Eigenmann, 1888)

Image contributors to this species:

Freshwater Fish from Uruguay 2nd. edition (1)

ScotCat Sources:

Other Sources:

Relevant Information:

Description: According to Bockmann and Miquelarena (2008), Rhamdella was proposed by Eigenmann and Eigenmann (1888) as a subgenus of Rhamdia Bleeker, 1858, from which it was distinguished by having a cranial fontanelle extending to the base of the supraoccipital, as opposed to not having this fontanel continue behind the eye (Eigenmann and Eigenmann 1888). Habitat: Rhamdella eriarcha is distributed in the Jacuí river basin, a tributary of the Patos lagoon system, Rio Grande do Sul, Brazil (Bockmann and Guazzelli 2003). Etymology: The genus name of Ramdella: –ella, a diminutive, proposed as a subgenus of Rhamdia. The specific name of eriarcha: meaning eri-, very; architis, anus, referring to the long anal fin. Remarks: Rhamdella eriarcha is endemic to Brazil, occurring in the Patos lagoon system. The species is widely distributed, frequent and abundant. As no significant threats were detected that put its population at risk, Rhamdella eriarcha was categorised as Least Concern (LC) (IUCN 2022).

Common Name:

None

Synonyms:

Rhamdia eriarcha, Rhamdella straminea, Rhamdella lemai

Family:

Heptapteridae

Distribution:

South America: Jacuí River basin, Brazil. Laguna dos Patos system (Brazil and Uruguay). Type locality: Rio Grande do Sul [Brazil].

Size:

21.0cm. (8¼ins)

Temp:

24-26°C (75-79°F)

p.H.

6.0-7.0.

Reference:

Bockmann, F.A. and G.M. Guazzelli, 2003. Heptapteridae (Heptapterids). p. 406-431. 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.
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. 2023. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 06/2023 ).
Instituto Chico Mendes de Conservação da Biodiversidade (ICMBio). 2022. Rhamdella eriarcha. The IUCN Red List of Threatened Species 2022.
Loureiro M, González-Bergonzoni I, Teixeira de Mello F. 2023. Freshwater Fishes of Uruguay. Second edition. Vertebrate Zoology Laboratory, Faculty of Sciences, University of the Republic.
The ETYFish Project Fish Name Etymology Database © Christopher Scharpf.

Family: Heptapteridae Back to Ident-A-Cat Click on Thumbnails

Rhamdella eriarcha

If you would like to contribute to the monthly factsheets with an article, information or photos, please e-mail me. You will of course be credited for your work.

If you would like to donate any denomination of monies to the site just click the above link button. All proceeds will go to running the site and hopefully to keep it going for a few years yet.