Alcyonidium pedunculatum Robertson, 1902
Common name(s): Smooth leather bryozoan
Phylum Bryozoa (Ectoprocta)
|Alcyonidium pedunculatum, about 10 cm long. Colllected at about 75 m depth in San Juan Channel July, 2008|
|(Photo by: Dave Cowles, July 2008)|
How to Distinguish from Similar Species:Alcyonidium gelatinosum has similar texture but is encrusting. Flustrellidra corniculata is erect but has many forked spines.
Geographical Range: Alaska to (central BC)--apparently plus the San Juan Islands.
Depth Range: Subtidal
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Lamb and Hanby, 2005
General Notes and Observations: Locations,
abundances, unusual behaviors:
This closeup of the colony shows the zooids feeding with their lophophores.
View of another individual, showing the lobed edges of the colony.
The colony grows from a distinct stalk.
The height of the lophophores when fully extended is about 3/4 mm. Photo by Dave Cowles, July 2017