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Hydroides sanctaecrucis

Helmut Zibrowius Helmut.Zibrowius at com.univ-mrs.fr
Thu May 17 16:55:59 EST 2001

>I am looking for information of the serpulid Hydroides sanctaecrucis.
>We have had an enquiry from someone who has found it in Australia and are
>interested to know if it could be a problem species. Is it a fouling
>species? I think it is Carribbean.

Are you sure it is really correctly identified from Australia by the 
"someone"? There are about 100 species in the genus Hydroides, most in 
the tropics and details of the operculum are essential for identification. On 
the basis of precise views of the operculum some people familiar with the 
diversity of Hydroides (H.A. ten Hove, Amsterdam; my humble person; and 
some others on the list) should be able to verify if really that species. Yes, 
it is a Caribbean species, somewhat similar to Hydroides dianthus which is 
absent from those southern waters. H. sanctaecrucis has been reported 
(correctly!) by Fauvel from French Guyana. I have seen this material at the 
Paris Museum. I also have seen additional material from that area. It is able 
to build tube agglomerations, but I have no precise information under which 
conditions it does this. It can be imagined as a fouling species, like various 
others in the genus.  

Centre d'Oceanologie de Marseille
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TEL:   +33  (0) 491041624
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E-MAIL:  hzibrowi at com.univ-mrs.fr

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