SCOTCAT.COM

your internet guide to all things catfish

Trachelyichthys exilis Greenfield & Glodek, 1977

Image contributors to this species:

Pertti Rassi (1) Julian Dignall (3) Chris Ralph (2) Peru Aquarium Group (1) Johnny Jensen's Photographic Library (3) Allan James (1) Pier Aquatics (1) Brian Walsh (1 art)

ScotCat Sources:

Other Sources:

Relevant Information:

Often sold in your LFS as T. decaradiatus but this species is not seen often in the hobby as exports from the Guyana area are rarely heard of. To see the differences in both species our factsheet will explain more about the shape of the humeral process and the eye position. Aquarium Care: Keeping both species is not too much of a problem as long as the water is kept clean and not too alkaline with a p.H.of between 6.5 and 7.0. They do like a planted aquarium where they like to hide out during the day. Diet: In the aquarium a good mixture of dry food such as flake and tablet. Worm food such as bloodworm, whiteworm and grindal. Etymology: Trachelyichthys: trachely, referring to close similarity to and relationship with Trachelyopterus; ichthys; fish. The specific name exilis: slim or slender, pertaining to the slim humeral process.

Common Name:

Pygmy Driftwood

Synonyms:

None

Family:

Auchenipteridae

Distribution:

South America: Peru, Nanay River basin in upper Amazon River drainage. Type locality: Río Mamón, a tributary of Río Nanay, approximately 25 km west of Iquitos, 3º42'S, 73º16'W, Peru.

Size:

9.5cm (3¾ins)

Temp:

22-25°c (71-77°f.)

p.H.

6.5-7.0.

IUCN Red List

The species is known from a single collection site in Peru, but it may be more common than currently known. It is not exposed to any major threat. The species is assessed as Least Concern, but additional fieldwork is necessary to establish the exact range and population status of the species (Needs updating IUCN 2016).

Reference:

Baensch, H.A. and R. Riehl 1991 Aquarien atlas. Bd. 3. Melle: Mergus, Verlag für Natur- und Heimtierkunde, Germany. 1104 p.
Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Greenfield, D.W. & Glodek, G.S. 1977: Trachelyichthys exilis, a new Species of Catfish from Peru.
Hidalgo del Aguila, M. 2016. Trachelyichthys exilis. The IUCN Red List of Threatened Species 2016.
Sandford, Mike; CAGB Magazine 41 1984 : Trachelyichthys - two of a kind.
ScotCat Factsheet no. 67. Jan.2002.

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

Trachelyichthys exilis

Trachelyichthys exilis
Dorsal head view

Trachelyichthys exilis
Head view

Trachelyichthys exilis

Trachelyichthys exilis
Head view

Trachelyichthys exilis

Trachelyichthys exilis
Glass art

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.