nematopterus, Hypostomus Isbrücker [I. J. H.] & Nijssen [H.] 1984:9, Fig. 1 [Bulletin Zoölogisch Museum, Universiteit van Amsterdam v. 10 (no. 2); ref. 9846] Alikene Creek, left bank tributary to Camopi River, Oyapock River basin, French Guiana. Holotype: IRSNB 689. Paratypes: ZMA 107804 (1). Type catalog: Walschaerts 1987:20 [ref. 20755], Ferraris 2007:257 [ref. 29155]. •Valid as Hypostomus nematopterus Isbrücker & Nijssen 1984 -- (Burgess 1989:432 [ref. 12860], Isbrücker 2001:28 [ref. 25653], Isbrücker 2002:19 [ref. 27178], Weber in Reis et al. 2003:360 [ref. 27061], Armbruster 2004:79 [ref. 27644], Ferraris 2007:257 [ref. 29155], Weber et al. 2012:211 [ref. 31999]). Current status: Valid as Hypostomus nematopterus Isbrücker & Nijssen 1984. Loricariidae: Hypostominae. Distribution: Oyapock River basin, French Guiana. Habitat: freshwater.