Urotrygon, Gill, 1863

Ehemann, Nicolás Roberto, Hernández, Sebastían, Siccha-Ramírez, Raquel, García-Rodríguez, Francisco Javier & Cruz-Agüero, José De La, 2024, Alike but genetically divergent: The resurrection of Urotrygon asterias (Jordan & Gilbert, 1883) from its closest relatives, the Munda and the Blotched stingray, Journal of Fish Biology 105 (4), pp. 1044-1059 : 1049

3.1 | Taxonomic reidentification of the Urotrygon specimens examined

Five specimens from the ICMYL and one from the ZMH were reidentified as U. munda and subsequently used for morphometric analysis. These individuals were ICMYL 121 (250 mm TL ♀, 240 mm TL ♀, 216 mm TL ♂, and 199 mm TL ♂, all from Mexico) and ZMH 10381 (240 mm TL ♂, El Salvador) . For the U. chilensis northern morphotype, 24 CICIMAR CI, 10 CIBN, six ZMH, two ICMYL, and one LACM specimen were taxonomically reidentified. The specimens examined were CIBN 1887 (286 ♂ mm TL, BCS, Mexico) , CIBN 2001 (four specimens 298 ♀, 295 ♂, 295 ♂, 284 ♂ mm TL respectively, Magdalena Bay , Mexico) , CIBN 2100 (two specimens 335 ♀ and 328 ♀ mm TL, respectively, Magdalena Bay , Mexico) , CIBN 4113 (302 mm TL ♂, Baja California Sur [ BCS], Mexico) , CIBN uncatalogued (two specimens 350 ♀ and 280 ♀ mm TL, respectively, Tehuantepec Gulf , Mexico); CICIMAR CI 1624 (301 ♀ mm TL, Magdalena Bay, Mexico) , CICIMAR CI 2147 (two individuals 266 ♀ and 286 ♂ mm TL respectively, Magdalena Bay , Mexico) , CICIMAR CI 2157 (302 ♂ mm TL, Magdalena Bay , Mexico) , CICIMAR CI 3067 (329 mm TL ♀, Magdalena Bay , Mexico) , CICIMAR CI 3940 (299 ♂ mm TL, Magdalena Bay , Mexico) , CICIMAR CI 3898 (324 mm TL ♀, BCS, Mexico) , CICIMAR CI 8334 (435 ♂ mm TL, BCS Mexico) , CICIMAR CI 8335 (400 ♀ mm TL, BCS Mexico) , CICIMAR CI 8336 (462 ♀ mm TL, BCS Mexico) , CICIMAR CI 8337 (445 ♀ mm TL, BCS Mexico) , CICIMAR CI 8338 (498 ♀ mm TL, BCS Mexico) , CICIMAR CI 8339 (471 ♀ mm TL, BCS Mexico) , CICIMAR CI 8340 (479 ♂ mm TL, BCS Mexico) , CICIMAR CI 8341 (384 ♂ mm TL, BCS Mexico) , CICIMAR CI (475 ♂ mm TL, BCS Mexico) CICIMAR-CI 8342 (430 ♀ mm TL, BCS, Mexico), CICIMAR-CI 8343 (295 ♂ mm TL, Magdalena Bay , Mexico), CICIMAR-CI uncatalogued (six specimens 406 ♂, 400 ♂, 295 ♂, 328 ♂, 384 ♂, 494 ♂ mm TL respectively, BCS, Mexico); ICMYL 68 (two individuals 264 ♀ and 308 ♀ mm TL, respectively, Nayarit, Mexico) , LACM 7013 (225 mm TL ♂, Sonora, Mexico) , ZMH 10368 (325 mm TL ♂) , ZMH 10381 (205 mm ♀, El Salvador) , ZMH 10387 (327 mm TL ♀, Mazatlán , Mexico) , ZMH 22 – 1988 (242 mm TL ♀, Mexico) , ZMH 103.3 (315 mm TL, ♀, El Salvador) , ZMH 10380 (219 mm TL ♂, El Salvador) . Finally, for the U. chilensis southern morphotype, 30 specimens were reidentified to this group and used in our analysis. These were the holotype BMNH 1871.9 .13.119, 262 ♀ mm TL, Chile along with the IMARPE 648 (275 ♀ mm TL, Tumbes , Peru) , IMARPE 1210 (221 ♂ mm TL, Acapulco , Peru) , IMARPE 1211 (352 ♀ mm TL, Acapulco , Peru) , IMARPE 1212 (293 ♀ mm TL, Acapulco , Peru) , IMARPE 1213 (271 ♀ mm TL, Acapulco , Peru) , IMARPE 1214 (235 ♂ mm TL, Acapulco , Peru) , IMARPE 1215 (216 ♂ mm TL, Acapulco , Peru) , IMARPE 1216 (184 ♀ mm TL, Acapulco , Peru) , IMARPE 1217 (199 ♂ mm TL, Acapulco , Peru) , IMARPE 1218 (200 ♀ mm TL, Acapulco , Peru) , IMARPE 1219 (171 ♂ mm TL, Acapulco , Peru) , IMARPE 1220 (171 ♀ mm TL, Acapulco , Peru) , IMARPE 1221 (145 ♂ mm TL, Acapulco , Peru) , IMARPE 1222 (145 ♂ mm TL, Acapulco , Peru) , IMARPE 1381 (320 ♀ mm TL, Tumbes, Peru) , IMARPE 1382 (301 ♂ mm TL, Tumbes, Peru) , IMARPE 1383 (276 ♀ mm TL, Tumbes, Peru) , IMARPE 1673 (300 ♀ mm TL, Tumbes, Peru) , IMARPE 1819 (325 ♀ mm TL, Tumbes, Peru) , IMARPE 1897 (325 ♀ mm TL, Tumbes, Peru) , IMARPE 2038 (336 ♀ mm TL, Tumbes, Peru) , IMARPE 2039 (330 ♀ mm TL, Tumbes, Peru) , IMARPE 2040 (218 ♂ mm TL, Tumbes, Peru) , ZMH 10382 (two specimens 255 ♂ and 249 ♀ mm TL, respectively, Callo Point , Ecuador) , ZMH 10383 (three specimens: 290 ♂, 261 ♂, and 256 ♂ mm TL, Taltal , Chile) , ZMH 10389 (340 ♀ mm TL Pisco , Peru) were assessed.