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Diplomystes incognitus Arratia & Quezada-Romegialli, 2017

 

Image contributors to this species:

Arratia G, Quezada-Romegialli C. 2017 (2) labrigo (1)

ScotCat Sources:

Etymology = Genus  Etymology = Species

Other Sources:

Search  FishBase  Wikipedia  Catalog of Fishes  Global Biodiversity Information Facility   iNaturalist

Relevant Information:

Description: Dorsal spines (total): 2; Dorsal soft rays (total): 6-7; Anal soft rays: 13; Vertebrae: 40. Diplomystes incognitus can be diagnosed from other species of the genus Diplomystes by having the following characters: skin of head, body, and fins densely covered by round, short papillae giving the skin a blackberry-like or verrucose aspect in large individuals; with a short head, slightly squarish and as long as broad (vs. slightly longer more triangular-shaped head); height of dorsal fin, ca. 20% of SL (range 17-25%) and triangularly-shaped (vs. slightly rhomboidal); maxilla with 7-9 teeth (vs. 8-13 in D. chilensis, 11-3 in D. nahuelbutaensis, and 12-19 in D. camposensis; with 10 infraorbital bones, as in D. nahuelbutaensis, but the dorsalmost compound bone is absent; urogenital pore and anus placed between posterior tips of pelvic fins as in D. chilensis (vs. urogenital pore and anus placed between pelvic fins or in between the distal tips of pelvics and anal fin); lack of pores of axillary gland with occasionally four on one side of body (vs. two or three pores).

Common Name:

None

Synonyms:

None

Family:

Diplomystidae

Distribution:

South America: Copequén and Tinguiririca Rivers (Rapel Basin) and Maule Basin. Negro River and tributaries in Argentina. Type locality: Melado River, Andean region of Linares, Maule Basin, Región del Maule, Chile, 35°430'10''S, 71°04'09''W.

Size:

15.0cm (6ins)

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.
Diplomystes incognitus Arratia & Quezada-Romegialli, 2017 observed in Chile by labrigo (licensed under creativecommons.org).
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 incognitus
Click for full image Diplomystes incognitus
Head view
Click for full imageDiplomystes incognitus
Avenida Vicente Mendez 14, Chillán, Bío-Bío, CL

 

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