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228 results for “Potamotrygon”
Fig. 35. Potamotrygon pantanensi, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 35. Potamotrygon pantanensi, n. sp. Dorsal and ventral views of neurocranium and mandibular arch of an adult female, MZUSP 110895. Abbreviations: AAC, anterior angular cartilage; CL, calcified ligament; DLP, dorsolateral process; EPB, epiphysial bar; FPF, frontoparietal fontanelle; HYO, hyomandibula; MC, Meckel's cartilage; PAC, posterior angular cartilage; PCF, precerebral fontanelle; POP, postorbital process; PQ, palatoquadrate PRP, preorbital process; SP, supraorbital process.
Fig. 34. Potamotrygon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 34. Potamotrygon pantanensis, n. sp. Ventral canals of lateral line system in an adult female non-type specimen, MZUSP 110899, 289 mm DW. Abbreviatons: hyc, hyomandibular canal; ioc, infraorbital canal; mnc, mandibular canal; nas, nasal canal; suc, supraorbital canal; ach, angular component of hyomandibular canal; iol, infraorbital loop; jch, jugular component of hyomandibular canal; nil, nasointernal loop; onc, orbitonasal component of supraorbital canal; pnc, prenasal component of nasal canal; pnl, prenasal loop; pst, posterior subpleural tubule; sbr, subrostral component of supraorbital canal; sol, suborbital loop; spc, subpleural component of hyomandibular canal; spl, subpleural loop; spt, subpleural tubules; sub, suborbital component of infraorbital canal.
Fig. 33. Potamotrygon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 33. Potamotrygon pantanensis, n. sp. MZUSP 110895: (a) Dorsal view of tail showing the entire dorsal row of enlarged pointed-spines, (b) showing the double rows and shape of pointed-spines, and (c) detail of some pointed-spines of dorsal rows.
Fig. 32. Potamotrygon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 32. Potamotrygon pantanensis, n. sp. Detail of dermal denticles in a non-type adult female specimen, MZUSP 110895, 328 mm DW, showing two types of denticles present on dorsal disc.
Fig. 43. Potamotrygon amandae, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 43. Potamotrygon amandae, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 111919, adult female, 236 mm DW, from Paraná River.
Fig. 53 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 53. Distribution of Potamotrygon amandae, n. sp. in the Paraná-Paraguay system. Red circles show localities where specimens of P. amandae were obtained for this study. Red star indicates Paraguay River, type locality of P. amandae.
Fig. 42. Potamotrygon amandae, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 42. Potamotrygon amandae, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 111916, adult male, 259 mm DW, from Paraná River.
Fig. 31 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 31. Patterns of ocelli and spots in Potamotrygon pantanensis, n. sp.: (a) MZUSP 110901, (b) MZUSP 110889 and (c) MZUSP 110874, adult female, 297 mm DW.
Fig. 29. Potamotrygon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 29. Potamotrygon pantanensis, n. sp. Upper and lower jaws of an adult female paratype specimen, MZUSP 110892, 300 mm DW.
Fig. 30. Potamotrygon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 30. Potamotrygon pantanensis, n. sp. Dorsal view of right clasper of an adult male, MZUSP 110891. Abbreviations: ap, apopyle; cg, clasper groove; dp, dorsal pseudosiphon; hp, hypopyle; vp, ventral pseudosiphon.
Fig. 28. Potamotrygon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 28. Potamotrygon pantanensis, n. sp. Dorsal (A) and ventral (B) views of paratype, NUP 4179, subadult male, 215 mm DW, from Manso River.
Fig. 27. Potamotrgon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 27. Potamotrgon pantanensis, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 110901, adult female, 306 mm DW, from Cuiabá River.
Fig. 4 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 4. Potamotrygon motoro. Dorsal (a) and ventral (b) views of an adult male specimen, MZUSP 111906, 310 mm DW, from the Mutum River.
Fig. 3 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 3. Potamotrygon motoro. Dorsal (a) and ventral (b) views of paralectotype, ZMB 4662, juvenile female, 183 mm DW, Cuiabá River.
Fig. 11 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 11. Potamotrygon motoro. Details of dermal denticles in an adult female, MZUSP 110902. Morphology and concentration of dermal denticles on dorsal disc in (a) and (b), a typical star-shaped denticle in (c) showing the crown with its central plate and dichotomous ridges, and in (d) trichotomous denticles present in spiracular openings.
Fig. 7 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 7. Potamotrygon motoro. Dorsal (a) and ventral (b) views of an adult female specimen, MFA 231, 298 mm DW, designated as holotype of Potamotrygon labradori by Castex et al. (1963), from the Colastiné River. Dorsal (c) and ventral (d) views of MFA 231 from photographs found in the archives of M. Castex, in the MFA, Santa Fé.
Fig. 24. Potamotrygon pantanensis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 24. Potamotrygon pantanensis, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 110888, adult female, 336 mm DW, from Cuiabá River.
Fig. 18 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 18. Potamotrygon motoro. (a) dorsal and lateral views of synarcual cartilage, (b) lateral view of scapulocoracoid, and (c) dorsal view of pelvic girdle of an adult male specimen (MZUSP 111905). Abbreviations:ADF, anterodorsal fenestra; ARS, articular synarcual surface; AVF, anteroventral fenestra; IP, iliac process; ISP, isquial process; LPP, lateral prepelvic process; LS, lateral stay; MPP, median prepelvic process; MSC, mesocondyle; MTC, metacondyle; OP, odontoid process; PC, procondyle; PDF, postdorsal fenestra; PVF, postventral fenestra; SNC, spinal nerve canal; SNF, spinal nerve foramen.
Fig. 6 in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 6. Potamotrygon motoro. Dorsal (a) and ventral (b) views of an adult male specimen, NUP 4136, 275 mm DW, from the Cuiabá River.
Fig. 26. Potamotrygon pantanesis, n in Systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin, with description of two new ocellated species (Chondrichthyes: Myliobatiformes: Potamotrygonidae)
Fig. 26. Potamotrygon pantanesis, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 110891, adult male, 268 mm DW, from Cuiabá River.
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