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| 3-5cm.
Shell longer and narrower, inner shell opening black. Seagrass areas.
Sometimes seen on some of our shores. |
6-7cm.
Shell thick with wavy flared lip, pattern of bars on upper side. Sandy
areas and near seagrass. Sometimes seen on some of our shores. |
6-7cm.
Shell thick with large flared lip, inner shell opening pearly, gold.
Silty sandy areas near seagrass. Commonly seen on many of our shores. |
7-9cm.
Shell thick, flared lip with one prong. Shell opening with brown stains.
Rare. Seen on Changi. |
4-9cm.
Shell thick oval. Inner shell opening white. On mangrove trees. Sometimes
seen in our mangroves. |
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| 4-6cm.
Shell thick, conical with many regular bumps and blunt spines. Rarely
seen alive. |
5-7cm.
Shell thin with spiral ribs. White, cream, pink or blue-grey. Sometimes
unmarked, sometimes with 4 or 5 spiral bands of brown spots. Sometimes
seen on some of our shores. |
4-6cm.
Shell, thick and flattened conical usually hidden by encrusting
lifeforms. Shell opening pearly. Operculum thin, brown and horn-like.
Rocks near reefs. Seen on Tanah Merah.
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5-7cm.
Shell thick with rows of fronds or spikes along the length, three
spikes along the siphonal canal. Sometimes seen on some of our shores. |
5-6cm
in diameter. Shell coils form a flat disk. Banded in shades of black
and brown. The body is striped too. Sometimes seen on our Southern
shores. |
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| 5-8cm.
Shell smooth with variable pattern. Underside with spots on the outer
edges and brown 'teeth'. Near reefs. Sometimes seen on our Southern
shores. |
8-9cm,
can reach 15cm. Shell smooth oval to pear-shaped, with lots of dark
spots. Underside white including the 'teeth'. The mantle pattern resembles
tiger stripes. Near living reefs. Rarely seen, on our Southern shores. |
7cm.
Near reefs. Seen only once. |
6-7cm.
Shell with spines and elongated siphonal canal. Usually only shells
of dead snails are seen on our Northern shores. |
5-7cm.
Shell thick, conical with long siphonal canal and regular knobs on
the spiralling ridges. Sandy areas near seagrasses. Sometimes seen
on our Northern shores. |
