Vertebrate Zoology 66(2): 105-115, doi:

Hyphessobrycon margitae spec. nov. - ein neuer Salmler aus dem Einzugsgebiet des rÃo Nanay in Peru (Teleostei: Characiformes: Characidae)

Axel Zarske^‡

‡ Senckenberg Naturhistorische Sammlungen Dresden, Museum für Tierkunde,, Dresden,, Germany

Corresponding author: Axel Zarske ( axel.zarske@senckenberg.de )

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Zarske A (2016) Hyphessobrycon margitae spec. nov. - ein neuer Salmler aus dem Einzugsgebiet des rÃo Nanay in Peru (Teleostei: Characiformes: Characidae). Vertebrate Zoology 66(2): 105-115

Abstract

Hyphessobrycon margitae spec. nov. is described from the río Nanay drainage in Peru. H. margitae spec. nov. is characterized by its colour in life: a bright blue, dorsal and ventral not sharply bounded longitudinal band (vs. sharply bounded in H. peruvianus), beginning behind the head (vs. beginning on the tip of snout in H. peruvianus). The iris is silvery to golden, dorsal gray to black (vs. dorsal red in H. peruvianus). Finns reddish to strongly red in life, without any distal black marks in the anal fin (vs. distal black marks in the anal fin are developed in H. vanzolinii). The praemaxillary teeth are different in H. metae and H. margitae spec. nov. The latter has in the external row of praemaxilla two (1.84 (one to two)) tricuspid, broad, not compressed teeth (vs. 3.42 (three to four) tricuspid or broad conical teeth compressed in H. metae).

Keywords

Hyphessobrycon, neue Art, heterorhabdus-Gruppe, agulha-Untergruppe, Südamerika, Peru.