Necklace Shell aperture
The underside of a Necklace Shell, Natica hebraea, showing the semi-circular opening for the operculum. Photograph © James Prineas, 2003
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Seashells - Gastropods
Triton
The Triton Shell, Charonia tritonis, lives in deep water where it frequently becomes encrusted with calcerous growths. This one has been partially cleaned with acid to show the mot...
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Triton aperture
Detail of the opening of a Triton Shell, Charonia tritonis, showing the dark, glossy, notched edges. From a specimen around 26 cm long. Photograph © James Prineas, 2003
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Triton operculum
The dark operculum of a Triton Shell, Charonia tritonis, has an intricate pattern of whorls and swirls etched in a thick, horny plate. 6 cm long. Photograph © James Prineas, 2003
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Triton operculum, underside
On the underside of a Triton operculum are concentric rings reminiscent of a slice of tree trunk. 6 cm long. Photograph © James Prineas, 2003
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