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The comparative morphology of the secondary sexual characters of elasmobranch fishes. The claspers, clasper siphons, and clasper glands. Memoir IX

โœ Scribed by W. Harold Leigh-Sharpe

Publisher
John Wiley and Sons
Year
1926
Tongue
English
Weight
724 KB
Volume
42
Category
Article
ISSN
0362-2525

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โœฆ Synopsis

Abstract

Sixteen 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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