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Interrelationships within a putative monophyletic groups of skates (Chondrichthyes, Rajoidei, Rajini). In Uyeno, T. & Arai, R. & Taniuchi, T. & Matsuura, K. (Eds) Proceedings of the second international conference on Indo-Pacific fishes. Ichthyological Society of Japan, Tokyo: 281–290
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Status of two species of skates, Raja (Dipturus) teevani and R. (D.) floridana (Chondrichthyes: Rajoidei), from the western North Atlantic. Copeia, 1994(2), 433–445
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Survey of the variation of alar and malar thorns in skates: phylogenetic implications (Chondrichthyes: Rajoidei). Journal of Morphology, 228(2), 165–178
DOI: 10.1002/(SICI)1097-4687(199605)228:2<165::AID-JMOR5>3.0.CO;2-4