Baryancistrus beggini sp. nov. (Copeia 2009(1))

[Rolo]

A New Black Baryancistrus with Blue Sheen from the Upper Orinoco (Siluriformes: Loricariidae)
Nathan K Lujan, Mariangeles Arce, and Jonathan W. Armbruster

Abstract

Baryancistrus beggini, new species, is described from the upper RÃ*o Orinoco and lower portions of its tributaries, the RÃ*o Guaviare in Colombia and RÃ*o Ventuari in Venezuela. Baryancistrus beggini is unique within Hypostominae in having a uniformly dark black to brown base color with a blue sheen in life, and the first three to five plates of the midventral series strongly bent, forming a distinctive keel above the pectoral fins along each side of the body. It is further distinguished by having a naked abdomen, two to three symmetrical and ordered predorsal plate rows including the nuchal plate, and the last dorsal-fin ray adnate with adipose fin via a posterior membrane that extends beyond the preadipose plate up to half the length of the adipose-fin spine.


Es handelt sich bei dieser neuen Art um den sog. "Blue Panaque" L 239.

Gruß,
Rolo