FIGURE 42 in Systematic revision of the Potamotrygon scobina Garman, 1913 species-complex (Chondrichthyes: Myliobatiformes: Potamotrygonidae), with the description of three new freshwater stingray species from Brazil and comments on their distribution and biogeography

FIGURE 42. Angular cartilages of species of the P. scobina complex. A. Holotype of Potamotrygon scobina (MCZ-602s, juvenile male, 238 mm DW). B. Potamotrygon scobina (MZUSP 104247, adult male, 503 mm DW). C. Potamotrygon adamastor, sp. nov. (MZUSP 104662, adult female, 545 mm DW). D. Potamotrygon limai (MZUSP 104068, juvenile male, 219 mm DW). E. Potamotrygon amazona, sp. nov. (MZUSP 117344, adult male, 532 mm DW). F. Potamotrygon garmani, sp. nov. (UNT 2174, adult? male, 341 mm DW). Abbreviations: AAC, anterior angular cartilage; LAC, lateral angular cartilage; PAC, posterior angular cartilage