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Diplomystes chilensis (Molina, 1782)

 

Image contributors to this species:

Arratia G, Quezada-Romegialli C. 2017 (1) Hautecoeur M. MNHN (1)

ScotCat Sources:

Etymology = Genus  Etymology = Species

Other Sources:o

Search  FishBase  Wikipedia  Catalog of Fishes  Global Biodiversity Information Facility  FishNet2  iNaturalist

Relevant Information:

Description: Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal soft rays: 12 - 15; Vertebrae: 41 - 43. A primitive catfish family from the rivers of Chile and Argentina so would therefore be considered cool water catfishes. Very rarely seen in the trade so there is not much information on keeping the 6 known species in the Diplomystes genera. Arratia (1987) erected the genus Olivaichthys for the Argentinian specimens but some authors still treat Olivaichthys as a synonym of Diplomystes. Remarks: Diplomystes chilensis is a component of local commercial fisheries as well as being a gamefish.

Common Name:

Tollo

Synonyms:

Silurus chilensis

Family:

Diplomystidae

Distribution:

South America: Rivers near Valparaiso and Santiago, central Chile.

Size:

20.0cm (8ins)

Temp:

20-24°C (67-75°f.)

p.H.

6.0-7.0.

Reference:

Arratia G, Quezada-Romegialli C. (2017) Understanding morphological variability in a taxonomic context in Chilean diplomystids (Teleostei: Siluriformes), including the description of a new species.
de Pinna, M.C.C., 1998. Phylogenetic relationships of neotropical Siluriformes (Teleostei: Ostariophysi): historical overview and synthesis of hypotheses. p. 279-330. In L.R. Malabarba, R.E. Reis, R.P. Vari, Z.M.S. Lucena and C.A.S. Lucena (eds.) Phylogeny and classification of neotropical fishes. Porto Alegre: EDIPUCRS.
Froese, R. and D. Pauly. Editors. 2018. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 06/2018 ).



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

Click for full image Diplomystes chilensis
Click for full image Diplomystes chilensis
Syntype MNHN-IC-A-9028

 

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