Leucoraja
| Leucoraja | ||||||||||||
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Little ray ( Leucoraja erinacea ) |
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| Systematics | ||||||||||||
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| Scientific name | ||||||||||||
| Leucoraja | ||||||||||||
| Malm , 1877 |
Leucoraja is a genus from the family of the real rays (Rajidae), which occur in the western, northern and eastern Atlantic , in the Mediterranean and the eastern Indian Ocean .
features
Usually the tail of this species is about the same length or slightly longer than the body of the animals. Their tail is wide at the beginning and gradually thins out. Young rays have a number of small thorns on their backs that extend from head to tail, but these disappear again with increasing age. At the same time, one or more parallel rows of thorns form, which run around the back as a half-ring. The back is colored light brown, dark brown or dark depending on the species and is marked with light patterns, spots or rings. Their body is usually heart-shaped, relatively wide and usually rounded at the outer corners. Their snout is moderately short and wide, and thorns can also be found at the tip of the snout. This genus is about 40 to 150 centimeters tall and has 64 to 81 vertebrae.
species
There are currently 16 recognized species within this genus:
- Leucoraja caribbaea ( McEachran , 1977)
- Sandray ( Leucoraja circularis ( Couch , 1838) )
- Leucoraja compagnoi ( Stehmann , 1995)
- Leucoraja elaineae ( Ebert & Leslie , 2019
- Little ray ( Leucoraja erinacea ( Mitchill , 1825) )
- Chagrin ray ( Leucoraja fullonica ( Linnaeus , 1758) )
- Rosette ray ( Leucoraja garmani ( Whitley , 1939) )
- Leucoraja lentiginosa ( Bigelow & Schroeder , 1951)
- Leucoraja leucosticta ( Stehmann , 1971)
- Maltese ray ( Leucoraja melitensis ( Clarck , 1926) )
- Cuckoo ray ( Leucoraja naevus ( Müller & Henle , 1841) )
- Winter rays ( Leucoraja ocellata ( Mitchill , 1815))
- Leucoraja pristispina ( Last, Stehmann & Séret , 2008)
- Leucoraja virginica ( McEachran , 1977)
- Leucoraja wallacei ( Hulley , 1970)
- Leucoraja yucatanensis ( Bigelow & Schroeder , 1950)
Individual evidence
- ↑ David A. Ebert: DEEP-SEA CARTILAGINOUS FISHES OF THE INDIAN OCEAN Volume 2 Batoids and Chimaeras ; Food and agriculture organization of the united nations, Rome 2014, ISBN 978-92-5-108453-3 ( // PDF ) p. 68.
- ↑ Leucoraja on Fishbase.org (English), last accessed on November 5, 2017.
- ↑ Ebert, DA & Leslie, RW (2019): Leucoraja elaineae sp. nov., a new rough skate (Rajiformes: Rajidae) from the Western Indian Ocean. Zootaxa, 4691 (3): 225-234. DOI: 10.11646 / zootaxa.4691.3.3
Web links
- Leucoraja on Fishbase.org (English)