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Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum


Outer Bamnks diving on the Great Escape Southern California Live-Aboard Dive Boat


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Posted by Chris on September 13, 2007 at 16:54:08:

I took these pictures of Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) on the Sea Divers San Miguel Island (California) Pinnacles trip aboard the Peace on September 7-8, 2007.

The trip was a great trip in which we dove Skyscraper, Boomerang Bank, an unnamed pinnacle West of Wilson Rock, Oil Springs, Lovers Cove, a Hare Rock night dive, Richardson Rock, Wilson Rock, and Egg Rock. We also saw blue whales on the way home. I will post a full set of pictures in the future.

In researching the species names for these images I cam across many names for the Articulated coralline red algae. It turns out the modern name is Calliarthron tuberculosum, but there are many synonyms; Amphiroa tuberculosa 1842, Amphiroa vertebralis Decaisne 1842, Arthrocardia tuberculosa (Postels & Ruprecht) Weber-van Bosse 1904, Calliarthron cheilosporioides Manza 1937, Calliarthron regenerans Manza 1937, Calliarthron setchelliae 1937, & Calliarthron vertebrale (Decaisne) Manza 1940.

I also found many examples of Garveia annulata growing on Calliarthron tuberculosum online using the algae's synonyms. I also found that although Garveia annulata seems to commonly occur on Calliarthron tuberculosum, it grows other places as well.



Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) at an unnamed pinnacle West of Wilson Rock
Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) at an unnamed pinnacle West of Wilson Rock


Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) at an unnamed pinnacle West of Wilson Rock
Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) at an unnamed pinnacle West of Wilson Rock


Aglaophenia struthionides (Ostrich-plumed hydroid) intermingled with Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) at Oil Springs, San Miguel Island, California
Aglaophenia struthionides (Ostrich-plumed hydroid) intermingled with Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) at Oil Springs, San Miguel Island, California


Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) and Ophiodon elongatus (Lingcod) at Egg Rock in the Channel between San Miguel Island and Santa Rosa Island, California.
Garveia annulata (Orange hydroid) growing on Calliarthron tuberculosum (Articulated coralline algae) and Ophiodon elongatus (Lingcod) at Egg Rock in the Channel between San Miguel Island and Santa Rosa Island, California.

©Chris Grossman, diver.net



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