brevispinis, Lasiancistrus Heitmans [W. R. B.], Nijssen [H.] & Isbrücker [I. J. H.] 1983:38, Figs. 4-7 [Bijdragen tot de Dierkunde v. 53 (no. 1); ref. 5278] Fallawatra River, rapid 5 kilometers southwest of Stondansie Fall, Nickerie District, Suriname. Holotype: ZMA 107740. Paratypes: BMNH 1982.9.30.1-2 (2); CAS 53133 (2); IRSNB 626 (orig. 3, now 1), 627 (orig. 15, now 8), 628-629 (2, 1); FMNH 94506 (2); INPA; MBUCV-V-13442 (1); MCZ 59812 (2); MHNG; MNHN (20 in 11 lots); MNRJ; MZUSP [ex IRSNB 626] (2), [ex IRSNB 627] (7); NMW 77971 (2); NRM 29420 (2); RMNH; USNM 276368 (2); ZMA; ZMB 31366 (2), ZSM 26348 [ex ZMA 106447] (2). Type catalog: Ibarra & Stewart 1987:51 [ref. 12367], Walschaerts 1987:20 [ref. 20755], Ferraris & Vari 1992:27 [ref. 19771], Provenzano et al. 1998:12 [ref. 24196], Ferraris 2007:287 [ref. 29155], Neumann 2011:264 [ref. 31652]. •Valid as Lasiancistrus brevispinis Heitmans, Nijssen & Isbrücker 1983 -- (Burgess 1989:433 [ref. 12860], Le Bail et al. 2000:236 [ref. 24549], Knaack 2000:58 [ref. 27233]). •Valid as Pseudancistrus brevispinis (Heitmans, Nijssen & Isbrücker 1983) -- (Armbruster 2004:5 [ref. 27844], Ferraris 2007:287 [ref. 29155], Cardoso & Montoya-Burgos 2009:947 [ref. 34068], Willink et al. 2010:41 [ref. 30670]). •Valid as Guyanancistrus brevispinis (Heitmans, Nijssen & Isbrücker 1983) -- (Isbrücker et al. 2001:19 [ref. 25649], Isbrücker 2001:27, 29 [ref. 25653], Isbrücker 2002:16 [ref. 27178], Fisch-Muller in Reis et al. 2003:385 [ref. 27061], Mol et al. 2012:287 [ref. 32867], Silva et al. 2014:11[ref. 33302], Melo et al. 2016:134 [ref. 34701], Fisch-Muller et al. 2018:23 [ref. 35723], Borstein et al. 2022:18 [ref. 39507] as brevispinis brevispinis, Taphorn et al. 2022:51 [ref. 41297]). Current status: Valid as Guyanancistrus brevispinis (Heitmans, Nijssen & Isbrücker 1983). Loricariidae: Hypostominae. Distribution: South America: Corantijn River basin to the upper Tapanahony River basin (Guyana and Suriname), Habitat: freshwater.