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Phylum Cnidaria > Class Anthozoa > Subclass Zoantharia/Hexacorallia > Order Actiniaria
Big hermit crab anemone
awaiting identification*
updated Aug 10

Where seen? This rather large anemone is sometimes seen on shells occupied by hermit crabs on some of our Northern shores. The anemone is sometimes many times larger than the hermit crab!

Features: Diameter with tentacles extended 2-3cm. Many short tapering tentacles. Some with opaque tentacles with dark base and paler tips, others with semi-transparent or beige tentacles with faint bands. Oral disk with radiating fine white stripes. Body column is thick, long with broad dark bars and tiny bumps (verrucae), column usually covered with sediment.

Small sea anemones are also seen on shells occupied by hermit crabs as well as on living snails.

Changi, Jul 08

Big hermit crab anemones on Singapore shores


Changi, Jul 04

Pasir Ris, May 09

Changi, Jul 09

more photos of big hermit crab anemones on Singapore shores

*Species are difficult to positively identify without close examination.
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