Urolophus

Urolophus
Temporal range: 56–0 Ma

Eocene to present[1]

Urolophus cruciatus
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Chondrichthyes
Order: Myliobatiformes
Family: Urolophidae
Genus: Urolophus
J. P. Müller & Henle, 1837
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.[2] The name is derived from the Greek oura, meaning "tail", and lophos, meaning "crest".[3] In Urolophus, the outer rims of the nostrils are not enlarged into lobes, but may form a small knob at the back.[4] Raia (Leiobatus) Blainville, 1816 is a synonym of Urolophus; though his account was published earlier, none of species Blainville listed for Leiobatus had descriptions, thus rendering them invalid.[5] Urolophus fossils have been recovered dating back to the Eocene epoch (c. 5634 Ma).[1]

Species

There are currently 22 recognized species in this genus:

See also

References

Wikimedia Commons has media related to Urolophus.
  1. 1 2 Sepkoski, J. (2002). "A compendium of fossil marine animal genera (Chondrichthyes entry)". Bulletins of American Paleontology. 364: 560.
  2. 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.
  3. Froese, Rainer, and Daniel Pauly, eds. (2015). Species of Urolophus in FishBase. February 2015 version.
  4. Yearsley, G.K. & Last, P.R. (2006). "Urolophus kapalensis sp. nov., a new stingree (Myliobatiformes: Urolophidae) off eastern Australia". Zootaxa. 1176: 41–52.
  5. Eschmeyer, W.N. (ed.) Catalog of Fishes electronic version (26 August 2010).


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