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Published online by Cambridge University Press: 16 March 2015
These notes, it is stated by the author, were made at different times and places, as opportunity favoured, and are offered as a contribution to a difficult branch of Ichthyology.
The generative organs of nine different species are described, with more or less minuteness of detail. The species are Squalus squatina, S. galeus, S. acanthias, S. carcharias, S. centrina, S. canicula, Scyllium melanostomum, Raia aquila, and R. oxyrhynchus.