Publisher's Synopsis
Excerpt from California Fish and Game, Vol. 4: Conservation of Wild Life Through Education; Sacramento, January, 1918
The skates like the sharks have claspers in the male. These in the young extend scarcely past the ventral fins, but in the adult they develop to a large size (see figs. 5, young, and 10 and 11, adult).
I have changed the form of this paper from that on the sharks by giving first a description of the different families of the skates and rays. This saves repeating all of the characters under each species. Hence in identifying any fish of this group it will be necessary to first find its family.
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