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Egg Cowrie

Ovula ovum


"The shells of these quite common cowries reach on average 65–70 millimetres (2.6–2.8 in) of length, with a minimum size of 50 millimetres (2.0 in) and a maximum size of 120 millimetres (4.7 in). They are egg-shaped (hence the Latin name ovum, meaning egg). The surface of the shell is smooth, shiny and completely snow white, with a dark reddish-purple interior, visible through the wide and long aperture, which bears teeth on one side only. In the living cowries the mantle is black, with a pattern of small white spots in adults, while juveniles resemble some toxic nudibranchs of the genus Phyllidia owing to their orange yellow sensorial papillae. The lateral flaps of the mantle usually hide completely the white surface, but the mantle is quickly retracted into the shell opening when the cowry is disturbed." Source: -


Tropical reef in shallow waters at 2–20 metres (6 ft 7 in–65 ft 7 in) of depth, usually on algae or soft corals, mainly feeding on Alcyonarian colonies (Leather Coral, genus Sarcophyton and Sinularia sp., Alcyoniidae).


An Egg cowrie with mantle covering its body. Spotted during a night dive at Dive and Trek.

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Eric Noora
Eric Noora 8 years ago

Thanks Argybee and Leuba :-)

Leuba Ridgway
Leuba Ridgway 8 years ago

Never seen a Cowrie this beautiful !! - thanks for sharing this..

Mark Ridgway
Mark Ridgway 8 years ago


Eric Noora
Spotted by
Eric Noora

Batangas, Philippines

Spotted on Jan 21, 2012
Submitted on Feb 12, 2012

Spotted for Mission

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