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

Family Architectonicidae
updated May 09

Where seen? The delightful living snail was seen only once on Pulau Hantu although empty shells are sometimes seen on other shores. 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: 5-6cm in diameter. An unmistakable snail, the shell coils form a flat disc-shape with a flat base. The shell is beautifully banded in shades of black and brown. The body is striped too, to match the shell. The operculum is made of a horn-like material. More about the Family Architectonicidae to which this snail belongs.

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.

Pulau Hantu, Apr 09

St. John's Island, May 09
Photo shared by Loh Kok Sheng on his blog.

Pulau Hantu, Apr 09
Photo shared by Toh Chay Hoon on her blog.

Pulau Hantu, Apr 09


Sisters Island, Jan 10


Pulau Hantu, Mar 10

Empty shell of dead snail.
Seringat-Kias, Jun 09

Filmed at Pulau Hantu on 12 Apr 09

sundial snail @ Pulau Hantu 12Apr2009 from BeachBum on Vimeo.

Links

References

  • Davison, G.W. H. and P. K. L. Ng and Ho Hua Chew, 2008. The Singapore Red Data Book: Threatened plants and animals of Singapore. Nature Society (Singapore). 285 pp.
  • Abbott, R. Tucker, 1991. Seashells of South East Asia. Graham Brash, Singapore. 145 pp.
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