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FIGURE 16 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 16. Ventral view of pelvic fin of Gymnura lessae, sp. nov. A) Male (AMNH 84277, unregistered size); B) Female (CAS 19834, 296 mm DW).
FIGURE 15 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 15. Specimens of Gymnura lessae, sp. nov., dorsal view. A) Adult male, 440 mm DW (AMS IA-78); B) Adult female, 695 mm DW (FLMNH 29981); C) Juvenile male, 244 mm DW (CAS 19835); D) Juvenile female, 296 mm DW (CAS 19834).
FIGURE 11 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 11. Dorsal (A) and ventral (B) views of holotype of Gymnura lessae, sp. nov. (USNM 51940, adult male, 420 mm DW).
FIGURE 26 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 26. Ventral view of pelvic fin of Gymnura sereti, sp. nov. A) Male (MNHN 1989-1240, 432 mm DW); B) Female (paratype, MNHN 1989-1225, 665 mm DW).
FIGURE 10 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 10. Map showing geographical distribution of Gymnura micrura. Black star represent approximate locality type, red circles represent approximate localities of material examined in the present study; grey circles represent approximate localities based on other sources (Gonzalez 1995; Charvet, P., UFPR, pers. comm.). Localities may represent more than one specimen. Abbreviations: col, Colombia; ven, Venezuela; sur, Suriname; br, Brazil; sp, São Paulo State, pr, Paraná State.
FIGURE 13 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 13. Dorsal (A) and ventral (B) views of Gymnura lessae, sp. nov. (paratype, USNM 440342, adult male, 342 mm DW).
FIGURE 12 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 12. Dorsal (A) and ventral (B) views of Gymnura lessae, sp. nov. (paratype, USNM 440342, adult male, 370 mm DW).
FIGURE 9 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 9. Tail color in Gymnura micrura, in dorsal view. A) Tail prominently cross- banded (MZUSP 123000, 252 mm DW); B) Tail of a larger specimen, with diffuse, less distinct bands (specimen not preserved, 575 mm DW).
FIGURE 6 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 6. Clasper of Gymnura micrura. A) Illustration in dorsal view, right clasper, showing external morphology; B) Radiograph, dorsoventral view (USNM 222622) showing skeleton. Abbreviations: ap, apopyle; ax, axial cartilage; B, beta cartilage; b1, first basal segment; b2, second basal segment; cg, clasper groove; dp, dorsal pseudosiphon; DT1, dorsal terminal 1 cartilage; DT2, dorsal terminal 2 cartilage; hpp, hypopyle; pf, pelvic fin; VM, ventral marginal cartilage; vp, ventral pseudosiphon; VT, ventral terminal cartilage.
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.
FIGURE 7 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 7. Specimens of Gymnura micrura in dorsal view, showing dorsal color variation. A) Predominant color pattern, dorsal side uniformly brown, without vermiculations; B–C) Freshly caught specimens with dark round spots and irregular dark patches on back; D–E) Freshly caught specimens varying their color according to the background. A. MZUSP 123000, 252 mm DW; B. MZUSP 122994, 486 mm DW; C. 220 mm DW; C and D, not preserved specimens; white ruler = 150 mm DW.
FIGURE 45 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 45. Pectoral fin and pectoral basal cartilages of Gymnura micrura (USNM 222622, 232 mm DW, radiograph, dorsoventral view). White square: amplified area showing lateral articulation between radials. Abbreviations: fmes: fragments of mesopterygium; mes1, mesopterygium 1; met, metapterygium; pro, propterygium; rad, radials.
FIGURE 38 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 38. Mandibular arches, radiograph, dorsoventral view. A) Gymnura micrura (USNM 222622, 323 mm DW); B) Gymnura lessae, sp. nov. (USNM 25452, 390 mm DW) C) Gymnura sereti, sp. nov. (holotype, USNM 193741, 383 mm DW). Abbreviations: ap, anterior process; hyo, hyomandibula; mc, Meckel's cartilage; pq, palatoquadrate; tb, tooth band. Black arrows indicate the most convex dorsal portion of the palatoquadrate; white arrow indicates the furrow at the ventral border of palatoquadrate of G. lessae.
FIGURE 14 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 14. Dorsal (A) and ventral (B) views of Gymnura lessae, sp. nov. (paratype, USNM 440342, juvenile female, 280 mm DW).
FIGURE 5 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 5. Varying degrees of development of the dorsal fin in Gymnura micrura (A– H: from smallest to largest dorsal fin); I) Radiograph of base of tail region showing the internal skeletal support of the dorsal fin. Arrows indicate the dorsal fin.
FIGURE 20 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 20. Specimens of Gymnura lessae, sp. nov., showing variation in dorsal color. A) Dorsal view of anterolateral disc region showing light bands on outer anterior margin of disc (CAS 19834, 296 mm DW); B) Dorsal view of head showing light bands on outer anterior margin of disc (CSIRO H7511.01, 363 mm DW); C) Detail of central region of dorsal disc showing vermiculate pattern (USNM 26551, 327 mm DW); D) Tail cross-banded (CAS 19834, 296 mm DW); E) Tail of a larger specimen, with diffuse, less distinct bands (FLMNH 29981, 695 mm DW).
FIGURE 8 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 8. Specimens of Gymnura micrura in dorsal view, evidencing the dorsal color uniformly brown, without vermiculations. B, D, F and H are amplifications of the white squares in A, C, E and G, respectively. A. Neotype, USNM 156714, 289 mm DW; C. MZUSP 122996, 316 mm DW; E. MZUSP 122994, 486 mm DW; G. MZUSP 123000, 252 mm DW
FIGURE 41 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 41. Synarcual of Gymnura micrura, lateral view. Abbreviations: assp, articular surface for scapular process; isv, intersynarcual vertebrae; lap, lateral anterior process; ls, lateral stay; mdc, medial crest; op, odontoid process; sc, suprasynarcual cartilage; snf, spinal nerve foramina; vc, ventral condyle.
FIGURE 3 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 3. Ventral view of pelvic fin of Gymnura micrura. A) Male (MZUSP 122999, 281 mm DW); B) Female (ANSP 120086, 217 mm DW).
FIGURE 33 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 33. Scatterplot of the canonical scores from the Size Independent Forward Stepwise Discriminant Analysis for Gymnura micrura (black circle), Gymnura lessae, sp. nov. (white circle) and Gymnura sereti, sp. nov. (black triangle).
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Allen Brain Atlas
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International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.