ephippia, Oxyropsis Aquino [A. E.] & Sabaj Pérez [M. H.] 2016:132, Figs. 1A, 2A, 3, 4, 5A [Zootaxa 4136 (no. 1); ref. 34526] Deer Falls, between Deer Creek and Water Dog Falls, Burro Burro river, Essequibo drainage, Guyana, 4°39'53"N, 58°50'28"W. Holotype: ANSP 177381. Paratypes: AMNH, ANSP, AUM, INPA, MCP. •Valid as Nannoxyropsis ephippia (Aquino & Sabaj Pérez 2016) -- (Delapieve et al. 2018:30 [ref. 35713], Taphorn et al. 2022:52 [ref. 41297]). Current status: Valid as Nannoxyropsis ephippia (Aquino & Sabaj Pérez 2016). Loricariidae: Hypoptopomatinae. Distribution: South America: Essequibo and Branco river basins (Guyana) endemic. Habitat: freshwater.