Epiactis lisbethae Fautin and Chia, 1986
Common name(s): Lisbeth's brooding anemone
Subclass Zoantharia (Hexacorallia)
|Epiactis lisbethae clinging to an Eisenia kelp frond on the west side of San Juan Island. Diameter of oral disk about 4 cm.|
|(Photo by: Dave Cowles. Identified with the help of Lisbeth Francis)|
How to Distinguish from Similar Species:Epiactis fernaldi has no radiating white lines on the oral disk or on the column. The dark lines on the column of Epiactis prolifera do not continue above the middle of the column. The lines on the oral disk of Epiactis ritteri are broad and do not approach the mouth. Urticina crassicornis can have a similar mix of colors on the column but its tentacles have broad color bands and the colors on its column wall are broad blotches rather than fine vertical lines.
Geographical Range: Bamfield, Vancouver Island, Canada to Coos Bay, OR
Biology/Natural History: Sexes are separate and reproduction is seasonal. This species broods its young externally. The brooded young appear to be all of similar age. Red, brown, and green females usually have pink young, while orange females usually have orange young.
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Fautin, Daphne G and Chia, Fu-Shiang, 1986. Revision of sea anemone genus Epiactis (Coelenterata: Actiniaria) on the Pacific coast of North America, with descriptions of two new brooding species. Canadian Journal of Zoology 64:8 1665-1674
This 5 cm diameter individual is hanging from a north-facing wall on San Juan Island at low tide.
Notice how the darker lines on the mesenterial insertions run all the way up the column wall to the oral disk.
Identified by Lisbeth Francis (for whom the anemone is named)
Photo by Dave Cowles, July 2006
This mother is brooding a batch of babies on the column wall.