General information |
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| Raja clavata Linnaeus, 1758 | ||
| Common name | Thornback ray | |
| Synonyms |
Raia rubus Bloch, 1784 Raja rubus Bloch, 1784 Cephaleutherus maculatus Rafinesque, 1810 Raia aspera Risso, 1810 Raja aspera Risso, 1810 Hieroptera abredonensis Fleming, 1841 Raja capensis Muller & Henle, 1841 Raja leiobatos Gronow, 1854 Raia rhizacanthus Regan, 1906 Raja bonaespeiensis Fowler, 1910 Raja pontica Pallas, 1914 |
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| IUCN Red List status (2014) | Not Reported |
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| Habitat | Saltwater |
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| Systematics |
Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Chondrichthyes; Elasmobranchii; Batoidea; Rajiformes; Rajidae. |
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| Geographical distribution | Israel; Egypt; Syria; Lebanon; Turkey; Russia; South Africa; Madagascar; Algeria; Angola; Libya; Morocco; Nigeria; Namibia; Cameroon; Ghana; Mauritania; Ivory Coast; Liberia; Senegal; Guinea; Sierra Leone; UK; Germany; France; Spain; Portugal; Italy; Greece; Bulgaria; Ukraine; Romania; Norway; Sweden; Denmark; Iceland; Ireland; Belgium; Netherlands; Albania; Bosnia and Herzegovina; Croatia; Cyprus; Faroe Islands; Gibraltar; Isle of Man; Malta; Monaco; Montenegro; Poland; Slovenia; Benin; Democratic Republic of the Congo; Republic of the Congo; Equatorial Guinea; Gabon; Gambia; Mauritius; Sao Tome and Principe; Togo; Tunisia; Western Sahara |
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| Occurrence | Native: Israel, Egypt, Syria, Lebanon, Turkey, Russia, Madagascar, Algeria, Angola, Libya, Morocco, Nigeria, Cameroon, Ghana, Mauritania, Ivory Coast, Liberia, Senegal, Guinea, Sierra Leone, UK, Germany, France, Spain, Portugal, Italy, Greece, Bulgaria, Ukraine, Romania, Norway, Sweden, Denmark, Iceland, Ireland, Belgium, Netherlands, Albania, Bosnia and Herzegovina, Croatia, Cyprus, Faroe Islands, Gibraltar, Isle of Man, Malta, Monaco, Montenegro, Poland, Slovenia, Benin, Democratic Republic of the Congo, Republic of the Congo, Equatorial Guinea, Gabon, Gambia, Sao Tome and Principe, Togo, Tunisia, Western Sahara Questionable: South Africa, Namibia, Mauritius |
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| Importance | Food/Sports |
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| Remarks | Not reported |
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Karyological information |
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| Geographical area of study | Sea Area west of Lysekil, Bohuslan, Sweden | |
| Source of chromosomes | Testes and Kidney |
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| Number of specimens with sex | Not reported |
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| Diploid chromosome number | 98 |
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| Karyotype formula | 49 bivalents |
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| Fundamental arm number | Not reported |
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| Chromosome length | Not reported |
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| Sex chromosome | Not reported |
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| Chromosome staining/banding/FISH | Not reported |
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| Reference(s) |
Nygren A,Nilsson B, Jahnke M (1971). Cytological studies in Hypotremata and Pleurotremata (Pisces). Hereditas 67: 275-282. |
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