[Annelida] Id for drift tube cluster?

Ken Halanych via annelida%40net.bio.net (by ken from auburn.edu)
Mon Feb 7 11:52:23 EST 2011


Those tubes are not pterobranch tubes. There are two species of pterobranch found in Bermuda. They are referred to Cephalodiscus gracilis and Rhabdopleura normani (probably not R. normani however).  Both have much smaller tubes. Cephalodiscus gracilis tubes do not have a even opening like this they have spikes and 'perches. Rhabdopleura tubes are dark....both species are much more encrusting and rarely make a bunch of upright stalks like this.

The barnacle hypothesis seems more probable.

Ken


On Feb 4, 2011, at 7:57 PM, Geoff Read wrote:

> Id suggestions sought.
> 
>>>> On 5/02/2011 at 4:36 a.m., Patricia Pocklington
> <ppockling from eastlink.ca> wrote
> 
> I received this query from a colleague in Bermuda.
> -----He has made a guess at a “tube worm cluster”.  It is growing
> on a velcro strap that he picked up off the beach in December. He has
> seen the “tubes” at least once before, also on floating debris. The
> barnacle in the picture is 1cm long.
> 
> I don't recognize the tubes but wonder if you would put it on the
> annelid list.  Perhaps someone out there will know which animal built
> the tubes.
> 
> Pat Pocklilngton
> <ppockling from eastlink.ca>
> 
> ===========================
> 
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Kenneth M. Halanych
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Marine Biology Coordinator
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Auburn University
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