Cerithium rupestre reaches 5 cm. Small gastropod with a pointed conical 10 to 12-whorled shell, brown to beige, often zoned. Lives very close to the surface, in the Mediterranean intertidal zone and shallow rocky pools. Detritivore. Very common, easily seen at the waterline. Its empty shells are often used by the hermit crab Clibanarius erythropus.
Frequently asked questions
How big is the Rock cerith?
Rock cerith (Cerithium rupestre) reaches 3–5 cm in length.
At what depth can you find the Rock cerith?
Rock cerith is found between 0–10 m deep.
Is the Rock cerith dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Rock cerith?
IUCN status: Least concern (LC).
Where can you find the Rock cerith?
Found in: East Atlantic, Macaronesia, Mediterranean.