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Urolophus

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Urolophus
Urolophus cruciatus
Scientific classification
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Genus:
Urolophus

Type species
Raja cruciata
Lacepède, 1804

Urolophus is a genus of round rays mostly native to the western Pacific Ocean and the Indian Ocean, though one species occurs in the Pacific waters of the Mexican coast. Müller and Henle erected Urolophus in an 1837 issue of Bericht Akademie der Wissenschaften zu Berlin.[1] The name is derived from the Greek oura, meaning "tail", and lophos, meaning "crest".[2] In Urolophus, the outer rims of the nostrils are not enlarged into lobes, but may form a small knob at the back.[3]

A fossil species, Urolophus crassicaudatus, has been found in Mount Bolca, northern Italy, in deposits dating back to the late Ypresian stage of the Eocene epoch (49 Ma).[4]

Species

There are currently 21 recognized species in this genus:

See also

References

  1. ^ Müller, J.; Henle, F.G.J. (1837). "Gattungen der Haifische und Rochen nach einer von ihm mit Hrn. Henle unternommenen gemeinschaftlichen Arbeit über die Naturgeschichte der Knorpelfische". Bericht Akademie der Wissenschaften zu Berlin. 1837: 111–118. {{cite journal}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  2. ^ Froese, Rainer; Pauly, Daniel (eds.). "Species in genus Urolophus". FishBase. February 2015 version.
  3. ^ Yearsley, G.K.; Last, P.R. (2006). "Urolophus kapalensis sp. nov., a new stingree (Myliobatiformes: Urolophidae) off eastern Australia". Zootaxa. 1176: 41–52. {{cite journal}}: Unknown parameter |lastauthoramp= ignored (|name-list-style= suggested) (help)
  4. ^ G. Carnevale, A. F. Bannikov, G. Marramá, J. C. Tyler, and R. Zorzin. 2014. The Pesciara-Monte Postale Fossil-Lagerstätte: 2. Fishes and other vertebrates. Rendiconti della Società Paleontologica Italiana 4:37-63.