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14 results for “Neotrygon”
Figure 2 in Notes on the origin of Müller and Henle's illustration and type material of the blue-spotted maskray Neotrygon kuhlii (Myliobatoidei: Dasyatidae)
Figure 2. – 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 field notes assembled as MS 840 at Bibliothèque 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 Bibliothèque centrale du MNHN. Copyright: Muséum national d'Histoire naturelle (Paris) – Direction des bibliothèques et de la documentation, 2016.
Data from: Mitochondrial haplotypes indicate parapatric-like phylogeographic structure in blue-spotted maskray (Neotrygon kuhlii) from the Coral Triangle region
Phylogeographic structure was investigated in the blue-spotted maskray, Neotrygon kuhlii, focusing on the Coral Triangle region. We used as genetic marker a 519-bp fragment of the cytochrome c-oxidase subunit I (COI) gene, sequenced in a total of 147 individuals from 26 sampling locations. The parsimony network of COI haplotypes was split into seven distinct clades within the Coral Triangle region. Different clades had exclusive but contiguous geographic distributions, indicating parapatric-like phylogeographic structure. Strong genetic differences were also inferred between local populations within a clade, where reciprocal monophyly between geographically adjacent samples was observed on several instances. Nearly 25% of the total molecular variance could be ascribed to differences between geographic samples within a clade, whereas interclade variation accounted for >65% of the total variance. The strong phylogeographic structure observed within a clade can be explained by either sedentarity or female philopatry. We interpret the parapatric distribution of clades as the joint result of 1) expansion from refuge populations at times of low sea level, and 2) possible enhanced competition between individuals from different clades, or assortative mating, or hybrid zones, along lines of secondary contact. The parapatric-like structure uncovered in the present study parallels regional differences at nuclear marker loci, thus pointing to incipient speciation within Coral Triangle N. kuhlii.
FIGURE 12 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 12. Holotype of Neotrygon orientale sp. nov. (MZB unreg [ex CSIRO H 7858-01]), late-adolescent male 213 mm DW) from South Kalimantan, Indonesia (fresh): (A) dorsal view; (B) ventral view.
FIGURE 11 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 11. Dorsal view (fresh) of an adult female Neotrygon caeruleopunctata sp. nov. (CSIRO H 7850-01, 350 mm DW) from Central Java, Indonesia.
FIGURE 7 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 7. Lateral view of the mid-tail showing respective heights of the dorsal and ventral tail folds: (A) Neotrygon kuhlii (CSIRO 7723-01, female 295 mm DW); (B) Neotrygon australiae sp. nov. (CSIRO CA 4307, female 306 mm DW); (C) Neotrygon caeruleopunctata sp. nov. (CSIRO H 6202-04, female 324 mm DW); (D) Neotrygon orientale sp. nov. (CSIRO H 7848-01, female 343 mm DW).
FIGURE 9 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 9. Holotype of Neotrygon australiae sp. nov. (CSIRO 7016-01, juvenile male 235 mm DW) from Queensland, Australia (fresh): (A) dorsal view; (B) ventral view.
FIGURE 6 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 6. Lateral view of the post-caudal sting tail of: (A) Neotrygon kuhlii (CSIRO 7723-01, female 295 mm DW); (B) Neotrygon australiae sp. nov. (CSIRO CA 4307, female 306 mm DW); (C) Neotrygon caeruleopunctata sp. nov. (CSIRO H 6202-04, female 324 mm DW); (D) Neotrygon orientale sp. nov. (CSIRO H 7848-01, female 343 mm DW).
FIGURE 10 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 10. Holotype of Neotrygon caeruleopunctata sp. nov. (MZB unreg [ex CSIRO H 7852-03]), adolescent male, 225 mm DW) from Bali, Indonesia (preserved): (A) dorsal view; (B) ventral view.
FIGURE 4 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 4. Freshly caught specimen of Neotrygon kuhlii (CSIRO 7723-01, female 295 mm DW) from Honiara, Solomon Islands: (A) dorsal view; (B) ventral view.
FIGURE 3 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 3. Dorsal view of: (A) embryonic syntype of Neotrygon kuhlii from West Papua, New Guinea (MNHN A7931, embryo 99.7 mm DW; probably equals Neotrygon australiae); (B) dried probable syntype of Neotrygon kuhlii from Java, Indonesia (RMNH 2472, adult male ~271 mm DW; probably equals Neotrygon caeruleopunctata).
FIGURE 8 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 8. Map showing the locations of the type material and other specimens examined of Neotrygon kuhlii (blue), Neotrygon australiae sp. nov. (red), Neotrygon caeruleopunctata sp. nov. (green) and Neotrygon orientale sp. nov. (yellow). Stars denote primary types (holotype or lectotype), solid circles denote secondary types, and open circles denote non-type material examined.
FIGURE 5 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 5. Oronasal region of: (A) Neotrygon kuhlii (CSIRO 7723-01, female 295 mm DW); (B) Neotrygon australiae sp. nov. (CSIRO CA 3247, adult male 379 mm DW); (C) Neotrygon caeruleopunctata sp. nov. (CSIRO H 6202-03, adult male 311 mm DW); (D) Neotrygon orientale sp. nov. (CSIRO H 6130-01, female 254 mm DW).
FIGURE 2 in Taxonomic status of maskrays of the Neotrygon kuhlii species complex (Myliobatoidei: Dasyatidae) with the description of three new species from the Indo-West Pacific
FIGURE 2. Dorsal view of Neotrygon kuhlii types from Vanikoro, Solomon Islands (preserved): (A) lectotype (MNHN A 2440, 1 of 2, female 154 mm DW); (B) paralectotype (MNHN A 2440, 1 of 2, female 162.7 mm DW).
Data from: Mitochondrial haplotypes indicate parapatric-like phylogeographic structure in blue-spotted maskray (Neotrygon kuhlii) from the Coral Triangle region
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