Figure 2 - uploaded by Philippe Borsa
Content may be subject to copyright.
? Vanikoro maskray (raie bleue; foro; Raia coerula), dorsal side. Original watercolour by J.R.C. Quoy executed at Vanikoro in 1828, during the Astrolabe expedition (Dumont d'Urville, 1833); p. 89 of Quoy and Gaimard's field notes assembled as MS 840 at Biblioth?que centrale du MNHN, Paris (Bauchot, 1994). Quoy represented ocellated blue spots (N = 14), dark-brown spots (N = 13), dark speckles (N = 3), and lighter-brown scapular blotches (N = 2, one on each shoulder). Edited from a photograph by Biblioth?que centrale du MNHN. Copyright: Mus?um national d'histoire naturelle (Paris) -Direction des biblioth?ques et de la documentation, 2016.
Source publication
In a recently published revision of the blue-spotted maskray Neotrygon kuhlii (Müller & Henle) species complex, P.R. Last and co-authors reviewed the original description, examined the type series, and designated one of two syntypes from Vanikoro (Santa Cruz archipelago, southwestern Pacific) as lectotype of the species. They also included a specim...
Contexts in source publication
Context 1
... in the Atlas Zoologique of the Astrolabe expedition (Quoy and Gaimard, 1835) but was eventually excluded from the final pub- lication, along with dozens of other plates (Bauchot, 1994). This unpublished plate, numbered 375-2 is obviously a reproduction, albeit slightly altered, of an original watercolour from Quoy and Gaimard field notes (Fig. 2). This watercolour is invaluable as it provides a testimony of the actual pigmentation patterns of the Vanikoro maskray. We analyzed the pigmentation patterns of the foregoing specimens and compared them to those published previ- ously for specimens of blue-spotted maskray from the Coral Tri- angle region and N. trigonoides (Borsa et ...
Context 2
... (Borsa et al., 2013). Dark spots (> 1% disk width) were present on the dorsal side of the two N. kuhlii syntypes from Vanikoro, and the scapular blotch was visible, albeit faintly, on one syntype, as in N. trigonoides (Table I). Dark spots and scapular blotch have also been represented on the addi- tional specimen from Vanikoro drawn by Quoy (Fig. 2). The Van- ikoro maskray could not be distinguished from N. trigonoides on the basis of pigmentation patterns, as both possess dark spots and scapular blotch (Tab. I) while it markedly differed from N. kuhlii as understood previously, based on Müller and Henle (1841) plate 51. Thus, contrary to the assertions of Last et al. (2016), the ...
Similar publications
Suková M. (2005): A revision of selected material of lignicolous species of Brunnipila, Capitotricha, Dasyscyphella and Neodasyscypha from the Czech Republic. - Czech Mycol. 57: 139–172. Selected material of lignicolous species of Brunnipila, Capitotricha, Dasyscyphella and Neodasyscypha from the Czech Republic was studied. Possible forms of Brunni...
Citations
... These are N. australiae (Garman, 1885), and N. westpapuensis Borsa, Arlyza, Hoareau and Shen, 2017. Two other species in the genus, the nominal N. kuhlii from Vanikoro and N. trigonoides possess distinctive spot patterns [3,15,16] that tell them apart from the blue-spotted maskray as it was originally described by J. Mü ller and F.G.J. Henle [4]. Based on the only available information on colour patterns, one cannot exclude that N. kuhlii as it has been redefined by Last and co-authors [14] and N. trigonoides are synonyms [16]. ...
... Two other species in the genus, the nominal N. kuhlii from Vanikoro and N. trigonoides possess distinctive spot patterns [3,15,16] that tell them apart from the blue-spotted maskray as it was originally described by J. Mü ller and F.G.J. Henle [4]. Based on the only available information on colour patterns, one cannot exclude that N. kuhlii as it has been redefined by Last and co-authors [14] and N. trigonoides are synonyms [16]. The genetically distinctive Indian Ocean maskray reported in the recent phylogeographic literature [6,7,10] remains undescribed. ...
... N. indica sp. nov. is distinct from N. kuhlii and N. trigonoides by the absence of the pair of conspicuous scapular blotches characteristic of these two species [15,16], although specimens of N. indica sp. nov. ...
The blue-spotted maskray, previously N. kuhlii, consists of up to eleven lineages representing separate species. Nine of these species (N. australiae, N. bobwardi, N. caeruleopunctata, N. malaccensis, N. moluccensis, N. orientale, N. vali, N. varidens, N. westpapuensis) have already been formally described and two (Indian Ocean maskray and Ryukyu maskray) remain undescribed. Here, the Indian Ocean maskray is described as a new species, Neotrygon indica sp. nov. Specimens of the new species were generally characterized on their dorsal side by a moderately large number of small ocellated blue spots, a low number of medium-sized ocellated blue spots, the absence of large ocellated blue spots, a high number of dark speckles, a few dark spots, and a conspicuous occipital mark. The new species formed a distinct haplogroup in the tree built from concatenated nucleotide sequences at the CO1 and cytochrome b loci. A diagnosis based on colour patterns and nucleotide sequences at the CO1 and cytochrome b loci is proposed. The distribution of N. indica sp. nov. includes the Indian coast of the Bay of Bengal, the Indian coast of the Laccadives Sea, and Tanzania. Considerable sampling effort remains necessary for an in-depth investigation of the phylogeographic structure of the Indian Ocean maskray.
... These are N. australiae (Garman, 1885), and N. westpapuensis Borsa, Arlyza, Hoareau and Shen, 2017. Two other species in the genus, the nominal N. kuhlii from Vanikoro and N. trigonoides possess distinctive spot patterns [3,15,16] that tell them apart from the blue-spotted maskray as it was originally described by J. Mü ller and F.G.J. Henle [4]. Based on the only available information on colour patterns, one cannot exclude that N. kuhlii as it has been redefined by Last and co-authors [14] and N. trigonoides are synonyms [16]. ...
... Two other species in the genus, the nominal N. kuhlii from Vanikoro and N. trigonoides possess distinctive spot patterns [3,15,16] that tell them apart from the blue-spotted maskray as it was originally described by J. Mü ller and F.G.J. Henle [4]. Based on the only available information on colour patterns, one cannot exclude that N. kuhlii as it has been redefined by Last and co-authors [14] and N. trigonoides are synonyms [16]. The genetically distinctive Indian Ocean maskray reported in the recent phylogeographic literature [6,7,10] remains undescribed. ...
... N. indica sp. nov. is distinct from N. kuhlii and N. trigonoides by the absence of the pair of conspicuous scapular blotches characteristic of these two species [15,16], although specimens of N. indica sp. nov. ...
The blue-spotted maskray, previously N kuhlii , consists of up to eleven lineages representing separate species. Nine of these species (N australiae, N. bobwardi, N. caeruleopunctata, N. malaccensis , N moluccensis , N orientale, N. vali , N varidens , N westpapuensis) have already been formally described and two (Indian-Ocean maskray and Ryukyu maskray) remain undescribed. Here the Indian-Ocean maskray is described as a new species, Neotrygon indica sp. nov.
... This species complex consists of up to eleven parapatrically-distributed lineages representing separate species [6,[9][10][11][12] of which nine have already been formally described [7,[12][13][14]. These are N. australiae Last [3,15,16] that tell them apart from the blue-spotted maskray as it was originally described by J. Müller and F.G.J. Henle [4]. Based on the only available information on colour patterns, one cannot exclude that N. kuhlii as it has been redefined by Last and co-authors [14] and N. trigonoides are synonyms [16]. ...
... These are N. australiae Last [3,15,16] that tell them apart from the blue-spotted maskray as it was originally described by J. Müller and F.G.J. Henle [4]. Based on the only available information on colour patterns, one cannot exclude that N. kuhlii as it has been redefined by Last and co-authors [14] and N. trigonoides are synonyms [16]. The genetically distinctive Indian-Ocean maskray reported in the recent phylogeographic literature [6,7,10] remains undescribed. ...
... Neotrygon indica sp. nov. is distinct from N. kuhlii and N. trigonoides by the absence of the pair of conspicuous scapular blotches characteristic of these two species [15,16], although specimens of N. indica sp. nov. ...
The blue-spotted maskray, previously N. kuhlii, consists of up to eleven lineages representing separate species. Nine of these species (N. australiae, N. bobwardi, N. caeruleopunctata, N. malaccensis, N. moluccensis, N. orientale, N. vali, N. varidens, N. westpapuensis) have already been formally described and two (Indian Ocean maskray and Ryukyu maskray) remain undescribed. Here, the Indian Ocean maskray is described as a new species, Neotrygon indica sp. nov. Specimens of the new species were generally characterized on their dorsal side by a moderately large number of small ocellated blue spots, a low number of medium-sized ocellated blue spots, the absence of large ocellated blue spots, a high number of dark speckles, a few dark spots, and a conspicuous occipital mark. The new species formed a distinct haplogroup in the tree built from concatenated nucleotide sequences at the CO1 and cytochrome b loci. A diagnosis based on colour patterns and nucleotide sequences at the CO1 and cytochrome b loci is proposed. The distribution of N. indica sp. nov. includes the Indian coast of the Bay of Bengal, the Indian coast of the Laccadives Sea, and Tanzania. Considerable sampling effort remains necessary for an in-depth investigation of the phylogeographic structure of the Indian Ocean maskray.
... None of the nine lineages uncovered by Borsa et al. (2016b) was N . kuhlii according to its recent re-description (Borsa and Béarez, 2016). Five of these nine lineages remain undescribed, illustrating the limitations of morphological characters to distinguish them. ...
... Here, a 519-bp fragment of the nucleotide sequence of the CO1 gene provided at least one, up to four diagnostic or quasidiagnostic nucleotides for eight (i.e. N. australiae, N. caeruleopunctata, N. varidens, clades I, II, III, VII, Number of blue spots on medial belt 2-17 0-3 0-6 0-6 No a including one specimen of the Guadalcanal maskray, which is a distinct species as indicated by pigmentation patterns (Borsa and Béarez, 2016); b from a single specimen of the Guadalcanal maskray; c ratio of preoral length / mouth width possibly singles out N. kuhlii compared to the other species, but the sample size is too small (n=2 when excluding the Guadalcanal maskray) for the comparison to be meaningful. Table S1). ...
... Roman numbers in brackets follow clade nomenclature of Arlyza et al. (2013a). No nucleotide sequence was available for N. kuhlii, which based on colour patterns and geographic proximity is likely a close relative of N. trigonoides if not synonymous with it (Borsa and Béarez, 2016 ...
Nine morphologically similar but genetically distinct lineages in the blue-spotted maskray species complex, previously Neotrygon kuhlii (Müller and Henle) qualify as cryptic species. Four of these lineages have been previously described as Neotrygon australiae Last, White and Séret, Neotrygon caeruleopunctata Last, White and Séret, Neotrygon orientale Last, White and Séret, and Neotrygon varidens (Garman), but the morphological characters used in the descriptions offered poor diagnoses and their geographic distributions were not delineated precisely. The objective of the present work is to complete the description of the cryptic species in the complex. Here, an additional four lineages are described as new species on the basis of their mitochondrial DNA sequences: Neotrygon bobwardi, whose distribution extends from the northern tip of Aceh to the western coast of Sumatera; Neotrygon malaccensis, sampled from the eastern part of the Andaman Sea and from the Malacca Strait; Neotrygon moluccensis, from the eastern half of the Banda Sea; and Neotrygon westpapuensis from the central portion of northern West Papua. The geographic distributions of N. australiae, N. coeruleopunctata, N. orientale, and N. varidens are updated. For each species, a diagnosis is provided in the form of a combination of private or partly-private nucleotides at 2–4 nucleotide sites along a 519-base pair fragment of the CO1 gene. We believe that the present taxonomic revision will provide information relevant to the sound management and conservation of cryptic species of the blue-spotted maskray in the Coral Triangle region.
... Thus, Last et al.'s (2016) morphological diagnoses were found to be invalid. The objectives of the present paper, which follows up Borsa and Béarez (2016), are the following: (1) to identify diagnostic characters that distinguish the Guadalcanal maskray from other species in the genus Neotrygon; (2) to describe it as a new maskray species, a necessary step towards clarifying the intricate taxonomy of species in this species complex. ...
... Last et al. (2016) have claimed that the Guadalcanal maskray specimen they had in hands was "very similar in coloration and shape to Müller and Henle's Solomon Island types" but this statement was shown to be unwarranted (Borsa and Béarez, 2016). Pigmentation patterns on the dorsal side of each pectoral fin in the Guadalcanal maskray consisted of a variable number (N = 2-21) of small ocellated blue spots, a small number (N = 1-6) of medium-sized ocellated blue spots, and 3-7 dark speckles (Table 1). ...
... All three Guadalcanal maskray specimens available for the present study thus lacked the dark spots and the scapular blotch that are present in the Vanikoro maskray, i.e. N. kuhlii (Borsa and Béarez, 2016). Given the relevance of pigmentation patterns in diagnosing species in the genus Neotrygon (Last and White, 2008; Last et al., 2010; Borsa et al., 2013a) and more generally in stingrays Borsa, 2017), this observation alone suffices to reject the hypothesis that the Guadalcanal maskray is synonymous with N. kuhlii. ...
The blue-spotted maskray from Guadalcanal Island (Solomon archipelago) is distinct by its colour patterns from Neotrygon kuhlii with which it was previously confused, and belongs to a genetic lineage clearly separate from all other known species in the genus Neotrygon. It is here described as a new species, Neotrygon vali sp. nov., on the basis of its nucleotide sequence at the cytochrome oxidase 1 (CO1) gene locus. It is diagnosed from all other known species in the genus Neotrygon by the possession of nucleotide T at nucleotide site 420 and nucleotide G at nucleotide site 522 of the CO1 gene.
