FIGURE 46 in Taxonomic and morphological revision of butterfly rays of the Gymnura micrura (Bloch & Schneider 1801) species complex, with the description of two new species (Myliobatiformes: Gymnuridae)

FIGURE 46. Radiograph of head region (dorsoventral view) showing the arching of propterygium and shape of the inner space between propterygia (black line). A) Gymnura micrura (USNM 222622, 323 mm DW); B) Gymnura lessae, sp. nov. (CSIRO H7511.01, 363 mm DW); C) Gymnura sereti, sp. nov. (holotype, USNM 193741, 383 mm DW). Abbreviations: anto, antorbital cartilage; f, fontanelle; mc, Meckel's cartilage; mes, mesopterygium; nc, nasal capsule; pq, palatoquadrate; pro, propterygium; rad, radials; scp, scapulocoracoid; S, synarcual.