Giant Top Shell (Tectus niloticus)
Cyrene Reef, 26th December 2015

Although traditionally classified as a Top Shell (F. Trochidae), recent studies have shown that this species is actually more closely related to the Turban Snails (F. Turbinidae), and is now usually included in a separate family, Tegulidae.

Giant Top Shell

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Giant Top Shell (Tectus niloticus)
Pulau Subar Laut (Big Sister’s Island), 20th August 2012

Although traditionally classified as a top shell (F. Trochidae), recent studies have shown that this species is actually more closely related to the turban snails (F. Turbinidae), and may warrant inclusion in a separate family (known as Tegulidae).

This is one of many species inhabiting shores that will be surveyed as part of the Southern Expedition of the Comprehensive Marine Biodiversity Survey. Taking place from 20th May to 7th June, researchers and volunteers will be involved in collecting samples and surveying various marine habitats, in an attempt to catalogue the marine life that lives in the waters to the south of Singapore.

Tapestry Turban Snail


Tapestry Turban Snail (Turbo petholatus)
Lazarus Island, 20th February 2011

Unlike the Dwarf Turban Snail (Turbo bruneus) and Ribbed Turban Snail (Turbo intercostalis), which are both commonly encountered on rocky shores and coral rubble in many parts of Singapore, the Tapestry Turban Snail is a much rarer species. Currently listed as Endangered in the 2008 edition of the Singapore Red Data Book, we’ve yet to find a live specimen on our shore trips.