| 5-8cm.
Shell thin, smooth usually brownish edged in green. Attached to
hard surfaces: jetty pilings, boulders. Common on our Northern shores,
sometimes in huge numbers. |
6-10cm.
Shell flat, circular and ribbed. Long and short tentacles emerge from gape.
Seagrasses and reefs. Sometimes seen on our Southern shores. |
6-12cm.
Shell thin, translucent, white. Lies unattached on the ground. Seagrass
areas. Commonly seen on our Northern shores and some southern shores.
|
6-8cm.
Shell flat, thin, round, white. Stuck to mangrove tree roots often
in large groups. Commonly seen in our mangroves. |
10-30cm.
Shell thin and fragile, margin rounded, with weak ribs and small scales,
purplish brown. Seagrass areas. Common on some of our shores. |
