Identification keys available for Family Rajidae

Key Title
49 Key to the rays and skates (Rajidae) of Europe.
115 Key to the species of hardnose skates (Rajidae) occuring in the Western Central Pacific.
700 Key to subgenera and species of skates (Rajidae) from China.
802 Key to the species of Rajidae from Argentina and Uruguay.
887 Key to species of skates (Rajidae) occurring in the Western Central Atlantic.
1526 Key to species of Dipturus in the western North Pacific.
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