Whiptail stingray: Difference between revisions
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Revision as of 05:42, 8 September 2016
| Whiptail stingrays Temporal range:
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| Southern stingray (Dasyatis americana) | |
| Scientific classification | |
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| Phylum: | |
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| Family: | Dasyatidae D. S. Jordan, 1888
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The whiptail stingrays are a family, the Dasyatidae, of rays in the order Myliobatiformes. They are found worldwide in tropical to temperate marine waters, and a number of species have also penetrated into fresh water in North America, Africa, Asia, and Australia. Members of this family have flattened pectoral fin discs that range from oval to diamond-like in shape. Their common name comes from their whip-like tails, which are much longer than the disc and lack dorsal and caudal fins. All whiptail stingrays, except the porcupine ray (Urogymnus asperrimus), have one or more venomous stings near the base of the tail, which is used in defense. They range in size from 0.18 to 2.0 m (0.59 to 6.56 ft) or more across.
Genera
The taxonomy of Dasyatidae was revised by Peter Last, Gavin Naylor, and Mabel Manjaji-Matsumoto in 2016, based on morphological and molecular phylogenetic data. The placement of Megatrygon within the family is provisional pending further research, as evidence suggests it may be more closely related to the families Potamotrygonidae and Urotrygonidae than to other dasyatids.[2]
- Subfamily Dasyatinae
- Bathytoshia Whitley, 1933
- Dasyatis Rafinesque, 1810
- Hemitrygon Müller and Henle, 1838
- Hypanus Rafinesque, 1818
- Megatrygon Last, Naylor, and Manjaji-Matsumoto, 2016
- Pteroplatytrygon Fowler, 1910
- Telatrygon Last, Naylor, and Manjaji-Matsumoto, 2016
- Taeniurops Garman, 1913
- Subfamily Hypolophinae
- Makararaja T. R. Roberts, 2007
- Pastinachus Rüppell, 1829
- Subfamily Neotrygoninae
- Neotrygon Castenau, 1873
- Taeniura J. P. Müller and Henle, 1837
- Subfamily Urogymninae
- Brevitrygon Last, Naylor, and Manjaji-Matsumoto, 2016
- Fluvitrygon Last, Naylor, and Manjaji-Matsumoto, 2016
- Fontitrygon Last, Naylor, and Manjaji-Matsumoto, 2016
- Himantura J. P. Müller and Henle, 1837
- Maculabatis Last, Naylor, and Manjaji-Matsumoto, 2016
- Pateobatis Last, Naylor, and Manjaji-Matsumoto, 2016
- Urogymnus J. P. Müller and Henle, 1837
Phylogeny
| Phylogenetic relationships of dasyatid genera, based on mitochondrial DNA (Makararaja not included; Megatrygon does not cluster within the family).[2] |
See also
References
- ^ M Puckridge, PR Last, WT White and N Andreakis (2012) Phylogeography of the Indo-West Pacific maskrays (Dasyatidae, Neotrygon): a complex example of chondrichthyan radiation in the Cenozoic. Ecology and Evolution. DOI: 10.1002/ece3.448.
- ^ a b Last, P.R., Naylor, G.J. & Manjaji-Matsumoto, B.M. (2016). "A revised classification of the family Dasyatidae (Chondrichthyes: Myliobatiformes) based on new morphological and molecular insights". Zootaxa. 4139 (3): 345–368. doi:10.11646/zootaxa.4139.3.2.
{{cite journal}}: CS1 maint: multiple names: authors list (link)
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