|Scientific Name||Lopha cristagalli (Linnaeus, 1758)|
Usual diameter: 10cm.
Maximum diameter: 20.5cm.
Shell thick, strongly ribbed and broadly rounded in shape; margins with characteristic deep zig-zag pattern; outer shell surface variable in colour, but usually dark to light purple or brown, covered with many small and rounded protruberances; inner shell surface porcelain-like and greyish-white in colour; upper and lower valves interlock with each other through teeth-like processes.
Stationary suspension feeders.
Marine: cemented to stones or corals in shallow sub-tidal coral reefs at depths of 5-30m.
Not evaluated by the IUCN Redlist.
Listed in CITES: No.
Listed in Wildlife (Protection) Act: No