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69 results for “Gymnura”
Figura 1 in Evidencia mariposa del máximo número de crías en la raya , Gymnura lessae (Myliobatiformes: Gymnuridae), en el Golfo de México
Figura 1. Mapa del Golfo de México señalando el área de captura de la hembra grávida de Gymnura lessae.
Figura 2 in Evidencia mariposa del máximo número de crías en la raya , Gymnura lessae (Myliobatiformes: Gymnuridae), en el Golfo de México
Figura 2. Embriones de Gymnura lessae junto con el sistema reproductor de una hembra grávida capturada en el sur del Golfo de México. Ut: útero, Oc: ovocito, Go: glándula oviductal.
FIGURE 7 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 7. Claspers of Gymnura australis; 532 mm DW adult male: (a) dorsal view; (b) clasper skeleton, dorsal view; (c) clasper skeleton, ventral view. Abbreviations: at: accessory terminal cartilage; ax: axial cartilage; β: beta cartilage; b1: first intermediate cartilage; b2: second intermediate cartilage; bt: basipterygium; crh: cover rhipidion; cg: clasper groove; dm: dorsal marginal cartilage; dt1: dorsal terminal 1 cartilage; dt2: dorsal terminal 2 cartilage; erh: exorhipidion; P-2: pelvic fin; ps: pseudosiphon; rh: rhipidion; ta: tail; vm: ventral marginal cartilage; vt: ventral terminal cartilage. Illustrations by I. P. Jacobsen.
FIGURE 5 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 5. Ventral head view of the Australian Butterfly Ray Gymnura australis var eastern Australia collected from Moreton Bay, south-east Queensland, mature male 373 mm DW (QM I 38138).
FIGURE 4 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 4. Geographical distribution of Gymnura australis var eastern Australia (open circles) and G. australis var northern Australia (closed circle). Star denotes Moreton Bay, south-east Queensland.
FIGURE 2 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 2. Tail morphological variation in Gymnura australis var eastern Australia; (a) dorsal view; (b) lateral view, no dorsal fin; (c) lateral view, with dorsal fin; (d) tail base, no dorsal fin; (e) tail base, with dorsal fin; (a), (b) and (d) (QM I 38138) (c) and (e) (QM I 38169).
FIGURE 3 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 3. Tail morphology of Gymnura australis var northern Australia (QM I 38140); (a) dorsal view; (b) lateral view; (c) tail base.
FIGURE 6 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 6. Gymnura australis; scanning electron micrographs, 730 mm DW female (a)-(c) upper anterolateral teeth; (d)-(f) lower anterolateral teeth. Upper anterolateral teeth from near symphysis in: (a) labial; (b) lingual; (c) dorso-lateral view. Lower anterolateral teeth from near symphysis in: (d) labial; (e) lingual; (f) dorso-lateral view. Photos by C. Glen.
FIGURE 8 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 8. Non-metric multidimensional scaling (MDS) ordination of Gymnuridae morphometric percentages (a) intraspecific comparisons between G. australis var eastern Australia and G. australis var northern Australia; (b) intra- and interspecific comparisons between G. zonura morphs (with and without a dorsal fin) and G. japonica; (c) interspecific comparisons of Indo-West Pacific Gymnuridae.
FIGURE 1 in A Taxonomic Review of the Australian Butterfly Ray Gymnura australis (Ramsay & Ogilby, 1886) and Other Members of the family Gymnuridae (Order Rajiformes) from the Indo-West Pacific.
FIGURE 1. The Australian Butterfly Ray Gymnura australis var eastern Australia collected from Moreton Bay, southeast Queensland, mature male 373 mm DW (QM I 38138); (a) dorsal view; (b) ventral view.
FIGURE 43. Scapulocoracoid, lateral view. A 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 43. Scapulocoracoid, lateral view. A) Gymnura micrura; B) Gymnura lessae, sp. nov. C) Gymnura sereti, sp. nov. (BMNH 1930.3.24.4, 236 mm DW, CT-Scan image); D) Gymnura sereti, sp. nov. (BMNH 1963.8.9.3, 337 mm DW, CT- Scan image). Abbreviations: adf, anterodorsal fenestra; avf, anteroventral fenestra; fo, foramina; msc, mesocondyle; mtc, metacondyle; pc, procondyle; pdf, postdorsal fenestra; pvf, postventral fenestra.
FIGURE 48 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 48. Pelvic girdle and pelvic fin (radiography, dorsoventral view). A) Gymnura micrura (USNM 222622, 323 mm DW); B) Gymnura lessae, sp. nov. (holotype, USNM 51940, 420 mm DW); C) Gymnura sereti, sp. nov. (holotype, USNM 193741, 383 mm DW). Abbreviations: bpt, basipterygium; ip, iliac process; isp, isquial process; lpp, lateral prepelvic process; of, obturator foramina; pb, puboischiadic bar; ppp, medial prepelvic process; ppv, pelvic propterygium; rad, radials.
FIGURE 35 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 35. Neurocranium of Gymnura micrura (MZUSP 122989, 385 mm DW). A) Dorsal view; B) Ventral view. Abbreviations: afpc, anterior foramen for preorbital canal; antoc, condyle for articulation with antorbital cartilage; as, articular surface; bp, basal plate; f, fontanelle; hyo, hyomandibular; lc, lateral commissure; lf, lymphatic foramen; na, nasal aperture; nc, nasal capsule; nca, nasal cartilage; oc, occipital condyle; of, orbital fissure; olc, olfactory canal; pop, postorbital process; prop, preorbital process; soc, supraorbital crest.
FIGURE 42 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 42. Synarcual cartilage (radiograph, dorsolateral view). A) Gymnura micrura (USNM 222622, 323 mm DW); B) Gymnura lessae, sp. nov. (SU 14336, 312 mm DW); C) Gymnura sereti, sp. nov. (holotype, USNM 193741, 383 mm DW). 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; sp, scapular process; scp, scapulocoracoid. Arrows indicate the point where the synarcual base projects laterally and extends posteriorly.
FIGURE 28 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 28. Morphological details of sereti, sp. nov. A) Ventral view of head (paratype, USNM 193896, 338 mm DW); B) Detail showing lower lip with medial region moderately concave (MNHN 1985-217, 297 mm DW); C) Detail showing lower lip with medial region strongly concave (MB 2297, 490 mm DW); D) Detail showing lower lip with prominent knobs (AMNH 9897, 560 mm DE); E) Lower tooth, labial face (modified from Cappetta, 1984, pl. 1, fig. 9).
FIGURE 34. Ventral lateral line system. A 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 34. Ventral lateral line system. A) Gymnura micrura (RN F43, female, 339 mm DW); B) Gymnura lessae, sp. nov. (NCSM 49395, female, 292 mm DW); C) Gymnura sereti, sp. nov. (FLMNH 29993, juvenile male, 290 mm DW). Subpleural tubules omitted. Canals on the left side not shown in their entirety. Differences between species observed in the pictures but not mentioned in the text were not considered consistent enough to be diagnostic. Colors: red, hyomandibular canal; green, infraorbital canal; brown, supraorbital canal; blue, nasal canal; yellow, prenasal canal. inl, innernasal loop; lh, lateral hook; pl, prenasal loop; spl, subpleural loop.
FIGURE 22 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 22. Dorsal (A) and ventral (B) views of holotype of Gymnura sereti, sp. nov. (USNM 193741, adult male, 383 mm DW).
FIGURE 31 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 31. Tail color in Gymnura sereti, sp. nov., dorsal view A) Tail cross-banded (FLMNH 29993, 512 mm DW); B) Tail cross-banded, presenting a black dot between the black bands (MNHN 1989-1232, 730 mm DW); C) Tail of a larger specimen, with the bands less distinct (MNHN 1989-1217, 535 mm DW).
FIGURE 21 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 21. Map showing geographical distribution of Gymnura lessae, sp. nov. Black star represent approximate locality of holotype, red circles represent approximate localities of material examined in the present study; grey circles represent approximate localities based on literature (as G. micrura; Fowler 1920, Nichols & Breder 1927, Breder 1931, Müller & Henle 1841, Bigelow & Schroeder 1953, Daiber & Booth 1960, Schwartz 1961, González-Isáis 2003, 2004, Kobelkowsky 2004, Cu- Salazar et al. 2014). B is a detailed view of darker rectangle in A. Localities may represent more than one specimen. Abbreviations: NC, North Carolina; VA, Virginia; DE, Delaware; NJ, New Jersey; PA, Pennsylvania; NY, New York; MA, Massachusetts.
FIGURE 19 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 19. Dorsal view of disc of Gymnura lessae, sp. nov., showing variation in vermiculate color pattern. B, D, F and H are amplifications of the white squares in A, C, E and G, respectively. A. NCSM 49395, 292 mm DW; C. AMNH 84277, 308 mm DW; E. CSIRO H7511.01, 363 mm DW; G. FLMNH 29981, 695 mm DW.
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