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Corydoras longipinnis sp.nov.

Corydoras longipinnis sp.nov.
Corydoras longipinnis sp.nov. - holotype and allotype
photo: from publication

new species:
Corydoras longipinnis Knaack, 2007

published in:
Knaack, J. (2007):
Beitraege zur Kenntnis der Callichthyidae (Teleostei: Siluriformes).
III. Corydoras longipinnis sp. n. – ein neuer Panzerwels aus dem río Dulce in Argentinien (Teleostei: Siluriformes: Callichthyidae)
Vertebrate Zoology 1286: 57 (1): 35-55 [download paper here]

type locality:
Argentina, Province of Santiago del Estero, río Paraná basin, río Sali.
Holotype: AI 221 (male, 61.1 mm SL), Paratypes: AI 222 (1), MTD-F 30765 (1), 30766 (1), ZMB 33766 (1), 33767 (1), ZMA 123751 (1), 123752 (1), priv. coll. Knaack (32 uncat.) 

Corydoras longipinnis map
Map showing ríos Sali and Seco in the province of Tucuman (green background left of dotted line) and río Dulce and town of Termas de río Hondo in Santiago del Estero. Red dot shows the approximate type locality of Corydoras longipinnis. Map shows an area of 115 x 45 km.

The author gives río Sali as locality with the details of the type material, but in his section ‘locus typicus’ mentions ‘río Dulce, some 20 km downstream Termas de río Hondo’. GPS data and a map are not provided. Additional localities for non preserved specimens are mentioned from lower rios Sali and Seco. Río Dulce is the effluent of the dam lake ‘Embalse de Río Hondo’ which here forms the border between Santiago del Estero and Tucuman provinces. All localities downstream Termas de río Hondo are located at the río Dulce in Santiago del Estero, the river name indicated in the title of the paper. Rio Sali is an affluent of the lake and río Seco a tributary of río Sali, so localities from these rivers are located in Tucuman province and upstream from both, the lake and the town of Termas de río Hondo.
Actually río Sali does not even touch the province of Santiago del Estero, proving wrong the holotype data. Therefore I consider the correct type locality to be río Dulce.
I hereby try to provide the missing GPS data as good as possible using both, paper maps and Google Earth. A place at río Dulce ‘some 20 km downstream from Termas de río Hondo’ is located at 27°29’21”S, 64°41’58”W (see pdf offered for download at the end of this page).

abstract (from publication):
The new species is characterized by (1) a short south (8,7–6,9 times in sl, 2,3–1,9 times in hl), (2) the number of dorsal lateral scutes [21 (20–21)], (3) the number of ventral lateral scutes [19 (18–20)], and (4) the elongation of dorsal and pectoral fi ns in males. The differentiation of breeding specimens of Corydoras cf. paleatus with elongated dorsal and pectoral fins and the classification in the genus Scleromystax Günther, 1864 is discussed.

published on PecesCriollos 2007-08-08

ICP 02 - Koerber (2007) Remarks on the type locality of Corydoras longipinnis [460 KB]
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