Myliobatis Raouxi

''Myliobatis'' is a genus of eagle rays in the family Myliobatidae.

Description

''Myliobatis'' species can reach a width up to about . Their bodies consist of a rhomboidal disc, wider than long, with one dorsal fin. The head is broad and short, with eyes and spiracles on the sides. The tail is slender, with one or two large spines at the base, without tail fin.Discover life
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The teeth are arranged in the lower and upper jaws in flat tooth plates called pavement teeth, each consisting of about seven series of plates, which are used to crush clam shells and crustaceans.

Biology

''Myliobatis'' species are ovoviviparous. Their gestation last about 6 months and a female produces four to seven embryos. ''Myliobatis'' species mainly feed on molluscs, bottom-living crustaceans, and small fishes.

Habitat

''Mylobatis'' species live in warm, shallow waters. Adults prefer sandy shores, while juveniles can usually be encountered offshore.World Register of Marine Species
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Species

Extant species

Currently, 11 species in this genus are recognized:

Extinct species

Extinct species within this genus include:Shark References
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*†''Myliobatis acutus'' Agassiz, 1843
*†'' Myliobatis affinis'' Chapman & Cudmore, 1924
*†''Myliobatis albestii'' Pauca, 1929
*†''Myliobatis altavillae'' Meschinelli, 1924
*†''Myliobatis altus'' Davis, 1888
*†''Myliobatis americanus'' Bravard, 1884
*†''Myliobatis angustidens'' Sismonda, 1849
*†''Myliobatis angustus'' Agassiz, 1843
*†''Myliobatis arcuatus'' Davis, 1888
*†''Myliobatis bellardii'' Issel, 1877
*†''Myliobatis bilobatus'' Dartevelle & Casier, 1943
*†''Myliobatis bisulcus'' Marsh, 1870
*†''Myliobatis bothriodon'' White, 1926
*†''Myliobatis canaliculatus'' Agassiz, 1843
*†''Myliobatis colei'' Agassiz, 1843
*†'' Myliobatis crassidens'' Dartevelle & Casier, 1959
*†''Myliobatis dimorphus'' Delfortrie, 1871
*†''Myliobatis dispar'' Leriche, 1913
*†''Myliobatis dixoni'' Agassiz, 1843
*†''Myliobatis elatus'' Stromer, 1905
*†''Myliobatis enormis'' Mendiola, 1999
*†''Myliobatis erctensis'' Salinas, 1901
*†''Myliobatis fastigiatus'' Leidy, 1876
*†''Myliobatis fraasi'' Stromer, 1905
*†''Myliobatis frangens'' Eastman, 1904
*†''Myliobatis funiculatus'' Delfortrie, 1871
*†''Myliobatis gigas'' Cope, 1867
*†''Myliobatis girondicus'' Pedroni, 1844
*†'' Myliobatis goniopleurus'' Agassiz, 1843
*†''Myliobatis granulosus'' Issel, 1877
*†''Myliobatis haueri'' Penecke, 1884
*†''Myliobatis holmesii'' Gibbes, 1849
*†''Myliobatis intermedius'' Dartevelle & Casier, 1943
*†''Myliobatis kummeli'' Fowler, 1911
*†''Myliobatis lagaillardei'' Thomas, 1904
*†''Myliobatis lateralis'' Agassiz, 1843
*†''Myliobatis leidyi'' Hay, 1899
*†''Myliobatis leognanensis'' Delfortrie, 1871
*†''Myliobatis lepersonnei'' Dartevelle & Casier, 1959
*†''Myliobatis llopisi'' Bauzá & Gomez Pallerola, 1982
*†''Myliobatis magister'' Leidy, 1876
*†''Myliobatis marginalis'' Agassiz, 1843
*†''Myliobatis merriami'' Jordan & Beal, 1913
*†''Myliobatis meyeri'' Weiler, 1922
*†''Myliobatis micropleurus'' Agassiz, 1843
*†''Myliobatis microrhizus'' Delfortrie, 1871
*†''Myliobatis miocenicus'' Böhm, 1942
*†''Myliobatis mokattamensis'' Stromer, 1905
*†''Myliobatis monnieri'' Cappetta, 1986
*†''Myliobatis moorabbinensis'' Chapman & Pritchard, 1907
*†''Myliobatis mordax'' Leidy, 1876
*†''Myliobatis moutai'' Dartevelle & Casier, 1959
*†''Myliobatis nzadinensis'' Dartevelle & Casier, 1943
*†''Myliobatis oweni'' Agassiz, 1843
*†''Myliobatis pachyodon'' Cope, 1867
*†''Myliobatis pachyrhizodus'' Fowler, 1911
*†''Myliobatis pentoni'' Woodward, 1893
*†''Myliobatis placentinus'' Carraroli, 1897
*†''Myliobatis plicatilis'' Davis, 1888
*†''Myliobatis prenticei'' Chapman & Cudmore, 1924
*†''Myliobatis raouxi'' Arambourg, 1952
*†''Myliobatis rima'' Meyer, 1844
*†''Myliobatis rivierei'' Sauvage, 1878
*†''Myliobatis rugosus'' Leidy, 1855
*†''Myliobatis salentinus'' Botti, 1877
*†''Myliobatis semperei'' Mendiola, 1999
*†''Myliobatis sendaicus'' Hatai, Murata & Masuda, 1965
*†''Myliobatis serratus'' Meyer, 1843
*†''Myliobatis sinhaleyus'' Deraniyagala, 1937
*†''Myliobatis stokesii'' Agassiz, 1843
*†''Myliobatis striatus'' Buckland, 1837
*†''Myliobatis strobeli'' Issel, 1877
*†''Myliobatis testae'' Philippi, 1846
*†''Myliobatis tewarii'' Mishra, 1980
*†''Myliobatis toliapicus'' Agassiz, 1843
*†''Myliobatis transversalis'' Gibbes, 1849
*†''Myliobatis tumidens'' Woodward, 1889
*†''Myliobatis undulatus'' Chaffee, 1939
*†''Myliobatis vicomicanus'' Cope, 1867
*†''Myliobatis wurnoensis'' White, 1934

These eagle rays lived from the Cretaceous to the Quaternary periods (from 70.6 to 0.012 Ma). Fossils of these fishes have been found worldwide.

The extinct species ''Myliobatis dixoni'' is known from Tertiary deposits along the Atlantic Ocean, Atlantic seaboards of the United States, Brazil, Nigeria, England, and Germany.

Gallery

Image:Myliobatis aquila Réunion.jpg, ''M. aquila''
Image:Myliobatis californica pt lobos.jpg, ''M. californica''
Image:Fish4341 - Flickr - NOAA Photo Library.jpg, ''M. freminvillei''
Image:Myliobatis australis seal rocks.jpg, ''M. tenuicaudatus''
Image:TobiEIesa.jpg, ''M. tobijei''

See also

* List of prehistoric cartilaginous fish

References

Further reading

*
* Compagno, L.J.V. (1999): Checklist of living elasmobranchs. A: Hamlett W.C. (ed.) Sharks, skates, and rays: the biology of elasmobranch fishes., The Johns Hopkins University Press: 471-498.
*
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* Walker, C. & Ward, D. (1993): - Fossielen: Sesam Natuur Handboeken, Bosch & Keuning, Baarn.

{{Taxonbar, from=Q965308

Myliobatis,
Ray genera
Taxa named by Georges Cuvier