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58 results for “Potamotrygon motoro”
Fig. 52. 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. 52. Potamotrygon amandae, n. sp. Anatomical details from radiograph of holotype, MZUSP 110910. Abbreviations: AAC, anterior angular cartilage; PAC, posterior angular cartilage.
Fig. 51. 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. 51. Potamotrygon amandae, n. sp. Dorsal and ventral views of neurocranium and mandibular arch (in ventral view) of a non-type adult male specimen, MZUSP 111148, 280 mm DW. 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. 49. 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. 49. Potamotrygon amandae, n. sp. MZUSP 111148: (a) Dorsal view of tail showing the entire dorsal rows of enlarged pointed spines, (b) showing the rows and format of pointed spines, and (c) detail of some pointed spines of dorsal rows.
Fig. 47 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. 47. Patterns of ocelli and spots in specimens of P. amandae, n. sp.: (a) holotype MZUSP 110910, (b) MZUSP 110904 and (c) MZUSP 110906.
Fig. 46. 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. 46. Potamotrygon amandae, n. sp. Dorsal view of right clasper of an adult male, MZUSP 111148, adult male, 280 mm DW. Abbreviations: ap, apopyle; cg, clasper groove; dp, dorsal pseudosiphon; hp, hypopyle; vp, ventral pseudosiphon.
Fig. 50. 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. 50. Potamotrygon amandae, n. sp. Ventral canals of lateral line system in a non-type adult female specimen, MZUSP 111140, 254 mm DW. Abbreviations: 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. 45. 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. 45. Potamotrygon amandae, n. sp. Upper and lower jaws of a non-type adult female specimen, MZUSP 110916, 275 mm DW.
Fig. 41. 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. 41. Potamotrygon amandae, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 110907, adult female, 270 mm DW, from Paraguay River.
Fig. 48. 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. 48. Potamotrygon amandae, n. sp. Detail of dermal denticles present in a non-type juvenile male specimen, MZUSP 111150, 215 mm DW, showing the two morphological types of denticles, with star-shaped and pointed crowns.
Fig. 40. 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. 40. Potamotrygon amandae, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 110906, adult female, 294 mm DW, from Paraguay River.
Fig. 39. 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. 39. Potamotrygon amandae, n. sp. Dorsal (a) and ventral (b) views of paratype, MZUSP 110904, adult male, 312 mm DW, from Paraná River.
Fig. 38. 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. 38. Potamotrygon amandae, n. sp. Dorsal (a) and ventral (b) views of holotype, MZUSP 110910, adult female, 341 mm DW, Paraguay River.
Fig. 36. 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. 36. Potamotrygon pantanensis, n. sp. Anatomical details from radiograph of holotype, MZUSP 110890. Abbreviations: AAC, anterior angular cartilage; PAC, posterior angular cartilage.
Fig. 37 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. 37. Distribution of Potamotrygon pantanensis, n. sp. in the Paraná-Paraguay system. Blue circles show localities where specimens of P. pantanensis were obtained for this study. Blue star indicates Cuiabá River, type locality of P. pantanesis.
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.
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