longa, Trygon Garman [S.] 1880:170 [Bulletin of the Museum of Comparative Zoology v. 6 (no. 11); ref. 17881] Acapulco, Mexico; Panama. Syntypes: MCZ 126-S (1) Acapulco, 554-S (1) Panama. Type catalog: Hartel & Dingerkus 1997:xlv [ref. 23119]. •Valid as Dasyatis longus (Garman 1880) -- (Nishida & Nakaya 1990:337 [ref. 20166], Allen & Robertson 1994:34 [ref. 22193], Bussing & López S. 1994:26 [ref. 23101], Acero P. & Franke 1995:15 [ref. 22546], McEachran in Fischer et al. 1995:754 [ref. 22829], Castro-Aguirre & Espinosa Pérez 1996:45 [ref. 22793], De La Cruz Agüero et al. 1997:35 [ref. 24545], Grove & Lavenberg 1997:118 [ref. 24023], Chirichigno F. & Vélez D. 1998:65 [ref. 24555], Castro-Aguirre et al. 1999:75 [ref. 24550], Compagno 1999:496 [ref. 25589], Rosenberger 2001:615 [ref. 25447]). •Valid as Dasyatis longa (Garman 1880) -- (Nelson et al. 2004:56 [ref. 27807], Love et al. 2005:13 [ref. 37547], Last & White 2008:280 [ref. 29693], McCosker & Rosenblatt 2010:188 [ref. 30957], Page et al. 2013:56 [ref. 32708], Del Moral-Flores et al. 2016:128 [ref. 34398], Weigmann 2016:130 [ref. 34211], Fourriére et al. 2016:440 [ref. 34668], Del Moral-Flores et al. 2016:606 [ref. 34923]). •Valid as Hypanus longus (Garman 1880) -- (Last et al. 2016:356 [ref. 34581], Last et al. 2016:568 [ref. 35010], Ehemann et al. 2018:26 [ref. 36194], Petean et al. 2020:1131 [ref. 37830], Calle-Morán et al. 2020:246 [ref. 37881], González-Acosta et al. 2021:8 [ref. 38361], Love et al. 2021:28 [ref. 39279], Page et al. 2023:46 [ref. 40505], Vela-Espinosa et al. 2023:5 [ref. 40981], Petean et al. 2024:7 [ref. 40884]). Current status: Valid as Hypanus longus (Garman 1880). Dasyatidae: Dasyatinae. Distribution: Eastern Pacific: Pacific coast of Baja California Sur (Mexico) south to northern Peru, including southern Gulf of California (Mexico) and Galápagos Islands (Ecuador). Habitat: marine.