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Typhlobelus guacamaya Schaefer, Provenzano, de Pinna & Baskin, 2005

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Relevant Information:

Description: Dorsal spines (total): 0; Dorsal soft rays (total): 0; Anal spines: 0; Anal soft rays: 5; Vertebrae: 51 - 53. Diagnosed from all congeners by the presence of three branchiostegal rays, posterior naris absent and the lack of pleural ribs. Differs further from both Typhlobelus ternetzi and T. macromycterus by the absence of eyes, and further distinguished from T. macromycterus by the presence of the nine caudal fin rays and five anal-fin rays and differs further from T. lundbergi by the presence of three laterosensory canal pores. Habitat: Some of the more remarkable fishes to be found in Neotropical rivers are the Glanapteryginae, a miniature subfamily of pencil catfishes that live entirely among the sand grains of the river bottom (Lujan, N. 2021). Etymology: Specific name guacamaya is derived from the name of the rapids on the middle Rio Cuao where the first specimens were encountered.

Common Name:

None

Synonyms:

None

Family:

Trichomycteridae

Distribution:

South America: Rio Cuao drainage basin in Venezuela. Type Locality: Venezuela, Estado Amazonas, Río Cuao at Raudal Guacamaya, 8.1 miles upstream from Raudal El Danto, 05º07.71'N, 67º31.53'W.

Size:

3.0cm. (1¼ins)

Temp:

25-28°c (77-83°f.)

p.H.

6.0-7.0.

IUCN Red List

The known specimens of this species come from a section of the Cuao River, a tributary of the Sipapo River, the Orinoco River basin, Amazonas state, Venezuela. There are insufficient data on the geographical distribution of the species, as well as data on the density, populations levels and structure, and the degree of impacts of threats on the habitat or distribution area to assess its extinction risk. Therefore, it is assessed as Data Deficient, (IUCN 2022).

Reference:

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. 2021. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 06/2021 ).
Lujan, Nathan. FB page 2021.
Provenzano-Rizzi, F. 2022. Typhlobelus guacamaya. The IUCN Red List of Threatened Species 2022.
Schaefer, S.A., F. Provenzano, M. de Pinna and J.N. Baskin, 2005. New and noteworthy Venezuelan glanapterygine catfishes (Siluriformes, Trichomycteridae), with discussion of their biogeography and psammophily. Am. Mus. Novit. (3496):1-27.

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

Typhlobelus guacamaya
Upper Orinoco, 2010

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