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135:. The clasper is then inserted into the cloaca, where it opens like an umbrella to anchor its position. The siphon then begins to contract, expelling water and sperm. The claspers of many shark species have spines or hooks, which may hold them in place during copulation. Male
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have cephalic claspers (tenacula) on their heads, which are thought to aid in holding the female during mating.
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usually includes one of the claspers raised to allow water into the siphon through a specific
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Sharks of the World: An
Annotated and Illustrated Catalogue of Shark Species Known to Date
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Compagno, Leonard J. V.; Nations, Food and
Agriculture Organization of the United (2001).
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Male anatomical structure found in some groups of animals, used in mating
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Heinicke, Matthew P.; Naylor, Gavin J. P.; Hedges, S. Blair (2009).
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anatomical structure found in some groups of animals, used in
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The
Timetree of Life: Cartilaginous Fishes (Chondrichthyes)
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Great White Sharks: The
Biology of Carcharodon carcharias
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have claspers formed from the posterior portion of their
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during mating. The act of mating in some fish including
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30:"Valva" redirects here. For other uses, see
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164:Sexual coercion among animals
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310:Sex organs
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137:chimaeras
103:clasper (
50:wobbegong
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