| Citation | Ishiyama, R., 1952. Studies on the rays and skates belonging to the family rajidae, found in Japan and Adjacent Regions 4. A revision of three genera japanese rajids, with descriptions of one new genus and four new species mostly occurred in Northern Japan. Shimonoseki College of Fisheries 51p. |
| DOI | http://dx.doi.org/ |
| Paper URL | |
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| Ref. No. | 87750 |
| Language | English |
| Usage | not used yet |
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