pacificus, Dasyatis Beebe [W.] & Tee-Van [J.] 1941:262, Pl. 2 (figs. 1-3); Fig. 24 [Zoologica, Scientific Contributions of the New York Zoological Society v. 26 (pt 3, no. 26); ref. 16103] Port Parker, (Pacific) Costa Rica. Holotype (unique): AMNH 15661-63, 15710SD [ex NYZS 26120] (parts). Type catalog: Mead 1958:132 [ref. 20648]. •Questionably valid as Himantura pacifica (Beebe & Tee-Van 1941) -- (Compagno 1999:496 [ref. 25589]). •Valid as Hymantura pacifica (Beebe & Tee-Van 1941) -- (Allen & Robertson 1994:34 [ref. 22193], Bussing & López S. 1994:26 [ref. 23101], McEachran in Fischer et al. 1995:755 [ref. 22829], Castro-Aguirre & Espinosa Pérez 1996:46 [ref. 22793], Castro-Aguirre et al. 1999:72 [ref. 24550], McCosker & Rosenblatt 2010:188 [ref. 30957], Carvalho & Lovejoy 2011:46 [ref. 31182], Page et al. 2013:57 [ref. 32708], Del Moral-Flores et al. 2016:130 [ref. 34398], Weigmann 2016:136 [ref. 34211], Last et al. 2016:346 [ref. 34581] not in Dasyatidae). •Valid as Styracura pacifica (Beebe & Tee-Van 1941) -- (Carvalho et al. 2016:214 [ref. 34827], Carvalho 2016:654 [ref. 34997], Ehemann et al. 2018:26 [ref. 36194], Romero-Berny et al. 2018:88 [ref. 35859], Calle-Morán et al. 2020:247 [ref. 37881], Scheel Dalmau et al. 2020:181 [ref. 38949], Grove et al. 2022:15 [ref. 41326], Page et al. 2023:46 [ref. 40505], Fricke et al. 2024:96 [ref. 41622]). Current status: Valid as Styracura pacifica (Beebe & Tee-Van 1941). Potamotrygonidae: Styracurinae. Distribution: Eastern Pacific: Mexico south to Colombia, including Galapagos Islands (Ecuador). Habitat: marine.