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Phylum Mollusca > Class Gastropoda > Family Architectonicidae
Clear sundial snail
Architectonica perspectiva

Family Architectonicidae
updated Aug 12

Where seen? The delightful living snail are sometimes encountered on our Southern shores on sandy areas near reefs. Elsewhere, it is considered moderately common and usually found subtidally on sandy and muddy bottoms, from depths of 10 to 120m, mostly between 10 and 65m.

Features: 5-7cm in diameter. An unmistakable snail, the shell coils form a flat disc-shape with a flat base. The shell has beautiful spirals in white, black and shades of brown. The body and fat tentacles are striped too, to match the shell. The operculum is made of a horn-like material.

What does it eat? It is said to eat burrowing sea anemones and sea pens. The mouth region is lined with a tough cuticle as a protection against stings of their prey.

Status and threats: The Clear sundial snail is listed as 'Endangered' in the Red List of threatened animals of Singapore. The original shores where they were found have been lost to reclamation.

Sisters Island, Jan 10

Laying egg mass.
St. John's Island, May 09

Photo shared by Loh Kok Sheng on his blog.

Pulau Hantu, Mar 10

Clear sundial snails on Singapore shores
Photos for free download from wildsingapore flickr

video clip of clear sundial snail on Singapore shores


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