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Hydrocorella africana

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(Redirected from Shell-mimic hydroid) Species of cnidarian

Hydrocorella africana
shell-mimic hydroid on shell occupied by pink hermit crab
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Cnidaria
Class: Hydrozoa
Order: Anthoathecata
Family: Hydractiniidae
Genus: Hydrocorella
Species: H. africana
Binomial name
Hydrocorella africana
Stechow, 1921

Hydrocorella africana, the shell-mimic hydroid, is a small colonial encrusting hydroid in the family Hydractiniidae.

Description

Shell-mimic hydroids grow as calcified colonies of 0.5–2 cm thick on shells of living snails. The colony has a pale chalky skeleton and cream to orange hydranths (feeding individuals).

Distribution

This colonial animal is found only off the South African coast from the west coast to Durban subtidally and to 500m under water.

Ecology

After the death of the mollusc the colony may continue growing in an open spiral. The colony often develops into spines and outgrowths, growing to such an extent that the colonised shell becomes unrecognisable.

References

  1. "WoRMS - World Register of Marine Species - Hydrocorella africana Stechow, 1921". marinespecies.org. Retrieved 2021-01-18.
  2. ^ Millard, N.A.H. 1975. Monograph on the Hydroida of Southern Africa. Ann. S. Afr. Mus. 68:1-513
Taxon identifiers
Hydrocorella africana
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