Calliactis

Calliactis is a genus of sea anemones. Species in this genus are mutually symbiotic with hermit crabs. The anemone gets a place to live and discarded scraps of the crab's food in exchange for its help in defending the crab.^[1]

Calliactis
Hermit crab (Dardanus pedunculatus) with Calliactis species attached to its shell.
Scientific classification
Kingdom:	Animalia
Phylum:	Cnidaria
Subphylum:	Anthozoa
Class:	Hexacorallia
Order:	Actiniaria
Family:	Hormathiidae
Genus:	Calliactis Verrill, 1869
Species
See text
Synonyms
Calliactus

Calliactis parasitica on the hermit crab Dardanus calidus

Species

Species within the genus include:^[2]

• Calliactis algoaensis
• Calliactis androgyna
• Calliactis annulata
• Calliactis argentacoloratus
• Calliactis armillatas
• Calliactis brevicornis
• Calliactis conchicola
• Calliactis japonica
• Calliactis marmorata
• Calliactis parasitica
• Calliactis polypores
• Calliactis polypus
• Calliactis reticulata
• Calliactis sinensis
• Calliactis tricolor
• Calliactis valdiviae
• Calliactis variegata
• Calliactis xishaensis