new combination and synonymy:
Xiphophorus obscurus Weyenbergh, 1877
is combined to
Jenynsia obscura (Weyenbergh, 1877)
and recognized as a senior synonym of
Jenynsia pygogramma Boulenger, 1902
Argentina, Province of Córdoba, Cruz del Eje. Lectotype: MSNG 33705
Koerber, S. & M. Azpelicueta (2009):
On two Jenynsia taxa (Cyprinodontiformes: Anablepidae) from Argentina, originally placed in the poeciliid genus Xiphophorus.
Zootaxa 2028: 51-58
abstract (from publication):
The type material of Xiphophorus heckelii Weyenbergh, 1874 and X. obscurus Weyenbergh, 1877 has apparently been re-examined for the first time. Xiphophorus heckelii is confirmed as a junior synonym of Jenynsia multidentata (Jenyns, 1842). Xiphophorus obscurus is recognized as a senior synonym of Jenynsia pygogramma Boulenger, 1902, which is placed in synonymy. A lectotype and paralectotypes for Jenynsia obscura (Weyenbergh, 1877) are designated.