[Annelida] Id for drift tube cluster?

ADRIANA GIANGRANDE via annelida%40net.bio.net (by gianadri from ilenic.unile.it)
Mon Feb 7 04:11:50 EST 2011

I agree with Waloszek, the tube seem pterobranch structures
Adriana Giangrande

> Suggestions from Dieter Waloszek:
>>>> Dieter Waloszek  02/07/11 9:20 AM >>>
> Well, the shelly things on the image could well be lepadomorph
> barnacles, and the tubes might be rhabdopleurids or cephalodiscids,
> pterobranchs, we call them stomochordates, others name them
> hemichordates, in either way are the deuterostomes, little sessile
> creatures that have a tentacle crown and produce such tubes with fine
> rings. the fossil graptolites should belong in these surroundings all in
> the stemline towards the Chordata.
>  You might also ask Alex Page, who helped me once for a lecture: "Page,
> A.A."   A piece from his email: ..... Cephalodiscus and Rhabdopleura are
> both common in the Bahamas, and occasional turn up as living corals in
> specialist aquarium/tropical fish shops. Though Rhabdopleura compacta
> may be found in UK Waters off Plymouth  .............  is extremely
> small compared to its tropical cousins.
> For barnacles you might email to Jens Høeg jthoeg from bi.ku.dk , who spent
> his life on these creatures, or, likewise, Bill Newman wnewman from ucsd.edu
> Hope this helped a little further.
> Yours, DIETER
> Am 05.02.2011 um 02:57 schrieb Geoff Read:
>> Id suggestions sought.
>>>>> On 5/02/2011 at 4:36 a.m., Patricia Pocklington
>>  wrote
>> I received this query from a colleague in Bermuda.
>> -----He has made a guess at a ³tube worm cluster².  It is growing
>> on a velcro strap that he picked up off the beach in December. He has
>> seen the ³tubes² 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
> Prof. Dr. Dieter Waloßek
> University of Ulm, Biosystematic Documentation
> Helmholtzstraße 20, 89081 Ulm, Germany
> phone x49-731-5031000, fax 5031009
> dieter.waloszek from uni-ulm.de
> WEBSITE: http://biosys-serv.biologie.uni-ulm.de/
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