callis, Paulasquama Armbruster [J. W.] & Taphorn [D. C.] 2011:48, Figs. 1-2. 3B [Copeia 2011 (no. 1); ref. 31222] Waruma River, Kako River-Mazaruni River drainage, riffles and shallow rapids upstream from camp, Cuyuni-Mazaruni, Guyana, 05.4755°, -060.77967°. Holotype: UG 1654. Paratypes: AUM 50000 (4, 1c&s). ROM 83784 (5), UG 1655 (2). Plus non-type material. •Valid as Paulasquama callis Armbruster & Taphorn 2011 -- (Lujan & Armbruster 2011:224 [ref. 31416], Salcedo 2013:564 [ref. 32670], Reis et al. 2016:15 [ref. 34496], Taphorn et al. 2022:53 [ref. 41297]). Current status: Valid as Paulasquama callis Armbruster & Taphorn 2011. Loricariidae: Hypostominae. Distribution: South America: Waruma River drainage (Guyana) endemic. Habitat: freshwater.