A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madrede Díos, Peru (Chondrichthyes: Potamotrygonidae)

Silva, João Paulo C. B. Da; Carvalho, Marcelo R. de

doi:10.1590/s0031-10492011000800001

Cited by 23 publications

(27 citation statements)

References 9 publications

(12 reference statements)

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“…Selection of representative species from all families within Order Myliobatiformes was based on the species descriptions available in the literatures (S2 Table) [1, 2, 5, 18–24]. The selected morphological characters used in the present study included body or disc shape, body thorns and denticles, head position and elevation, snout or rostral fin form, gill openings, tail types, tail colour pattern, ventral tail fold and caudal fin.…”

Section: Methodsmentioning

confidence: 99%

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Molecular and Morphological Analyses Reveal Phylogenetic Relationships of Stingrays Focusing on the Family Dasyatidae (Myliobatiformes)

Lim

Chong

et al. 2015

PLoS ONE

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Elucidating the phylogenetic relationships of the current but problematic Dasyatidae (Order Myliobatiformes) was the first priority of the current study. Here, we studied three molecular gene markers of 43 species (COI gene), 33 species (ND2 gene) and 34 species (RAG1 gene) of stingrays to draft out the phylogenetic tree of the order. Nine character states were identified and used to confirm the molecularly constructed phylogenetic trees. Eight or more clades (at different hierarchical level) were identified for COI, ND2 and RAG1 genes in the Myliobatiformes including four clades containing members of the present Dasyatidae, thus rendering the latter non-monophyletic. The uncorrected p-distance between these four ‘Dasytidae’ clades when compared to the distance between formally known families confirmed that these four clades should be elevated to four separate families. We suggest a revision of the present classification, retaining the Dasyatidae (Dasyatis and Taeniurops species) but adding three new families namely, Neotrygonidae (Neotrygon and Taeniura species), Himanturidae (Himantura species) and Pastinachidae (Pastinachus species). Our result indicated the need to further review the classification of Dasyatis microps. By resolving the non-monophyletic problem, the suite of nine character states enables the natural classification of the Myliobatiformes into at least thirteen families based on morphology.

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Section: Methodsmentioning

confidence: 99%

“…Each state was assigned numeric codes (0–3) to define a set of distinguishing morphological characters. The character score of each representative species was recorded based on the available descriptions of published works [1, 5, 18–24]. The scored character states were then used to construct a character matrix.…”

Section: Methodsmentioning

confidence: 99%

Molecular and Morphological Analyses Reveal Phylogenetic Relationships of Stingrays Focusing on the Family Dasyatidae (Myliobatiformes)

Lim

Chong

et al. 2015

PLoS ONE

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“…Similar to other potamotrygonid species (e.g., Potamotrygon falkneri; Silva & Carvalho, 2011a, 2011b, P. amandae presents a variable pattern of dorsal disc coloration. Within the brown and gray patterns, the variation can be composed of ocelli, small, vermiculated marks or the total absence of specific dorsal patterns.…”

Section: Measurementsmentioning

confidence: 64%

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)

Loboda

Carvalho

2013

Neotrop. ichthyol.

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A systematic revision of the Potamotrygon motoro (Müller & Henle, 1841) species complex in the Paraná-Paraguay basin based on morphological characters was undertaken. Morphological systems analyzed include external morphology, coloration, dermal denticles, and spines, canals of the ventral lateral-line system, and skeletal components. Potamotrygon motoro is widely distributed in the Paraná-Paraguay basin and some of its diagnostic characters are: ocelli present on dorsal disc tricolored, well-defined and evenly distributed, with diameter similar or greater than eye-length; ventral coloration with relatively large whitish central region, with gray or brown area predominant on outer ventral disc margins; dermal denticles well-developed and star-shaped over central disc; labial grooves absent; monognathic heterodonty present in upper and lower jaws of adults. Potamotrygon pauckei Castex, 1963 and Potamotrygon labradori Castex, Maciel & Achenbach, 1963, are synonymized with P. motoro; Potamotrygon alba Castex, 1963, is a nomen dubium in accordance with previous authors. Additionally, two new ocellated species of Potamotrygon from the Paraná-Paraguay basin are described: Potamotrygon pantanensis, sp. nov. and Potamotrygon amandae, sp. nov. These are described and compared with P. motoro and other congeners. Potamotrygon pantanensis, sp. nov. is described from the northern Pantanal region; Potamotrygon amandae, sp. nov. is widespread in the Paraná-Paraguay basin.Uma revisão sistemática do complexo de espécies Potamotrygon motoro (Müller & Henle, 1841) na bacia Paraná-Paraguai, baseada em caracteres morfológicos, foi realizada. Os caracteres morfológicos analisados incluem morfologia externa, coloração, dentículos dérmicos e espinhos, sistema de canais ventrais da linha lateral e componentes do esqueleto. Potamotrygon motoro é amplamente distribuída na bacia Paraná-Paraguai e alguns dos seus caracteres diagnósticos são: ocelos presentes no dorso do disco tricolores, bem definidos e bem distribuídos, com diâmetro similar ou maior do que o comprimento do olho; coloração ventral com região central do disco branca e com tonalidades marrom ou cinza presentes nas margens do disco; dentículos dérmicos bem desenvolvidos e com formato estrelado na região central do disco; sulcos labiais ausentes; heterodontia monognática presente nas maxilas superior e inferior nos adultos. Potamotrygon pauckei Castex, 1963 e Potamotrygon labradori Castex, Maciel & Achenbach, 1963, são sinonimizadas com P. motoro, e Potamotrygon alba Castex, 1963, é considerada um nomen dubium em acordo com autores anteriores. Além disso, duas espécies novas oceladas de Potamotrygon da bacia Paraná-Paraguai são descritas: Potamotrygon pantanensis, sp. nov. e Potamotrygon amandae, sp. nov. Estas espécies novas são descritas e comparadas com P. motoro e outras espécies do gênero. Potamotrygon pantanensis, sp. nov. é descrita da região norte do Pantanal e Potamotrygon amandae, sp. nov. é amplamente distribuída na bacia Paraná-Paraguai.

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“…Given the issues raised by Toffoli et al (2008), the identities of these specimens have been assigned here are based in large part on color pattern. We are confident that GN5880 is P. tatianae because it was among the voucher specimens examined by da Silva and de Carvalho (2011) in their description of P. tatianae, which is known only from the Madre de Dios River. Two specimens have been identified as P. cf.…”

Section: Potamotrygonidae (River Stingrays)mentioning

confidence: 86%

A DNA Sequence–Based Approach To the Identification of Shark and Ray Species and Its Implications for Global Elasmobranch Diversity and Parasitology

Naylor

Caira

Jensen

et al. 2012

Bulletin of the American Museum of Natural History

393

519

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A new species of Neotropical freshwater stingray of the genus Potamotrygon Garman, 1877 from the Río Madrede Díos, Peru (Chondrichthyes: Potamotrygonidae)

Abstract: Potamotrygon tatianae sp. nov., is described from Río Madre de Díos, Peru, upper Rio Madeira

Cited by 23 publications

References 9 publications

Molecular and Morphological Analyses Reveal Phylogenetic Relationships of Stingrays Focusing on the Family Dasyatidae (Myliobatiformes)

Molecular and Morphological Analyses Reveal Phylogenetic Relationships of Stingrays Focusing on the Family Dasyatidae (Myliobatiformes)

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)

A DNA Sequence–Based Approach To the Identification of Shark and Ray Species and Its Implications for Global Elasmobranch Diversity and Parasitology

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