Ishiyama, R. (1958). Studies on the rajid fishes (Rajidae) found in the waters around Japan. Journal of the Shimonoseki College of Fisheries. v. 7 (nos 2-3): 191-394 [1-202], Pls. 1-3.
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Ishiyama, R.
1958
Studies on the rajid fishes (Rajidae) found in the waters around Japan