Wednesday, August 6, 2014

[Ichthyology • 2012] Serrapinnus sterbai • Description of a new characins (Characiformes: Characidae: Cheirodontinae) from the eastern parts of Brazil with comments on S. gracilis (Géry, 1960) comb. nov. and S. littoris (Géry, 1960) comb. nov.

Serrapinnus sterbai Zarske, 2012

Serrapinnus sterbai spec. nov. from the eastern parts of Brazil (probably Araguaya drainage) is described. Typically there are (1) a black longitudinal band from the eye to the basis of caudal-fin, (2) an incomplete lateral line with eight to 12 pored scales, (3) 32 to 34 scales in a longitudinal line, (4) 21 to 23 anal-fin rays (total), (5) 32 to 33 vertebrae (4+9–10+18 – 20), (6) 14 to 16 gill-rakers on the first left arch (5 – 6 /9–10), (7) five seven- to ninecuspid premaxillary teeth, (8) two to three sevencuspid maxillary teeth, (9) five sevencuspid mandibulary teeth, (10) head relatively small (3,93 to 4,71 times in SL) and (11) body depth moderately high (2,63 to 3,18 times in SL). The species is easy to identify from all other members of the genus by its coloration. Cheirodon gracilis Géry, 1960 and Cheirodon littoris Géry, 1960 are transferred into the genus Serrapinnus

Key words: Teleostei, Characiformes, Serrapinnus, new species, Brazil, South America.

 Zarske, A. 2012. Serrapinnus sterbai spec. nov. – Beschreibung eines neuen Salmlers (Teleostei: Characiformes: Characidae: Cheirodontinae) aus Brasilien mit Bemerkungen zu S. gracilis (Géry, 1960) comb. nov. und S. littoris (Géry, 1960) comb. nov. Vertebrate Zoology. 62 (1): 3–17.
Serrapinnus sterbai spec. nov. – Description of a new characins (Teleostei: Characiformes: Characidae: Cheirodontinae) from Brazil with comments on S. gracilis (Géry, 1960) comb. nov. and  S. littoris (Géry, 1960) comb. nov.