xiphidius, Rivulus Huber [J. H.] 1979:66, Fig. 3 [Revue française d'Aquariologie Herpétologie v. 6 (no. 3); ref. 8826] Upstream of Saint-Georges, in the back of Maripa falls, a few hundred meters from Oyapock, French Guiana. Holotype: MNHN 1979-284. Paratypes: MNHN 1979-0285 (5). •Valid as Rivulus xiphidius Huber 1979 -- (Huber 1991:71 [ref. 19721], Huber 1992:461 [ref. 20639], Keith et al. 2000:48 [ref. 24547], Lazara 2001:286 [ref. 25711], Costa in Reis et al. 2003:540 [ref. 27061], Suijker & Collier 2006:10 [ref. 28729], Keith et al. 2006:137 [ref. 28851], Costa 2006:153 [ref. 28875] in subgenus Laimosemion). •Valid as Laimosemion xiphidius (Huber 1979) -- (Costa 2011:240 [ref. 31655], Vermeulen et al. 2012:188 [ref. 32253]). Current status: Valid as Laimosemion xiphidius (Huber 1979). Rivulidae: Rivulinae. Distribution: Oyapock River basin and adjacent coastal drainages: Brazil and French Guiana. Habitat: freshwater.