rudis, Psammobatis Günther [A.] 1870:470 [Catalogue of the fishes in the British Museum v. 8; ref. 1995] Sandy Point, Magellan Strait, Argentina. Holotype (unique): BMNH 1868.1.15.3. •Valid as Psammobatis rudis Günther 1870 -- (McEachran 1983:51 [ref. 5382], Pequeño & Lamilla 1985:229 [ref. 9593], Pequeño 1989:17 [ref. 14125], Lloris & Rucabado 1991:40 [ref. 22530], López et al. 1996:11 [ref. 23681], McEachran & Dunn 1998:286 [ref. 23312], Compagno 1999:489 [ref. 25589], Cousseau et al. 2000:27 [ref. 40447] Menni & Stehmann 2000:87 [ref. 24909], Mabragaña et al. 2011:8 and table S2 [ref. 31800], Weigmann 2016:100 [ref. 34211], Last et al. 2016:24 [ref. 34941], Last et al. 2016:461 [ref. 35005], Nión et al. 2016:23 [ref. 35565]). Current status: Valid as Psammobatis rudis Günther 1870. Arhynchobatidae. Distribution: Southeastern Pacific, southwestern Atlantic. Habitat: marine.