Abstract

AbstractSixteen species of the genus Scyllium are here considered and arranged in groups according to the accessory structures present on the claspers as follows: Canicula, sufflans, ventriosum. Catulus, stellare, capense, variegatum (var. pantherinus), umbratile. Burgerii, hispida, bivium, anale, natalense, edwardsii. Marmoratum, laticeps. The structure of the wall of the oviduct and vagina is demonstrated, and it is shown that the epithelium of both is at first columnar, then ciliated in immature specimens; at maturity that of the vagina further undergoes by transitions a change to stratified. The walls are highly vascular, but contain no special glands.

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