Fluviphylax rubens, Huber, 2024

Fluviphylax rubens new species

Fluviphylax rubens n. sp. ( Figs 3 View Figure 3 , 4 View Figure 4 ; Tab. I)

Holotype

CIUA 7702 , male, 12.4 mm SL, 16.0 mm TL, from Tiriquin, in a small tributary of Río Negro , at border with Venezuela, Guainia dpt., altitude 88 m, southern Colombia (locality code COGCGM 22-07, GPS data: 2.321N, 67.202W), Vasco Gomes coll., 17 Feb. 2022. GoogleMaps

Paratypes

MNHN 2022-0255 About MNHN , 2 About MNHN spms of undisclosed sex (13.2 mm SL, 18.2 mm TL and 13.8 mm SL, 17.6 mm TL), same data as holotype GoogleMaps . CIUA 7703 , 3 spms of undisclosed sex (15.8 mm SL, 20.2 mm TL and 12.4 mm SL, 16.2 mm TL and 13.2 mm SL, 16.8 mm TL), from Guamirsa, further north of Tiriquin, in a small tributary of the same river, northeast of Puerto Colombia, Guainia dpt., Guamirsa , altitude 106 m, southern Colombia (locality code COGCGM 22-10, GPS data: 2.938N, 67.839W), Vasco Gomes coll., 19 Feb. 2022 GoogleMaps .

Diagnosis

Separated from all known congeners by a lower number of rays at dorsal fin (4 or 5, vs. always with medians well above 5 in other