[Annelida] Streblospio benedicti

mgarrow at sunstroke.sdsu.edu mgarrow at sunstroke.sdsu.edu
Fri Jan 27 07:40:20 EST 2006


For images of  Streblospio benedicti in a salt lake in California (the
Salton Sea) try 
our web site at San Diego State University:

Mary Ann Tiffany

http://www.sci.sdsu.edu/salton/SamplingBottomDwellersSS.html
http://www.sci.sdsu.edu/salton/InvertebratePoster.html

Original Message:
-----------------
From: Scott Jones msjoneser at gmail.com
Date: Thu, 26 Jan 2006 15:41:41 -0500
To: watling at hawaii.edu, annelida at magpie.bio.indiana.edu
Subject: Re: [Annelida] Streblospio benedicti


Thanks everyone, for the replies.

Well, it seems that I was under the impression that the first pair of
appendages on
S. benedicti were the first pair of branchiae, not palps.  So it confused me
when                         the keys I was using described Streblospio as
only having one pair of branchiae.  I thought
that this either had to be a discrepancy on the part of the keys (highly
unlikely)
or a discrepancy on the part of the photographers (more likely).

In our neck of the woods, two common spionids are hard to distinguish if you

haven't had the epiphany I've had today:  S. benedicti and Paraprionospio
pinnata.
S. benedicti, I think, usually retains its palps and one pair of branchiae
whereas P.
pinnata usually loses its palps and often loses its last pair of branchiae.
When you
have such a case, you get a specimen that looks an awful lot (at first
glance) those
pictures of S. benedicti you all found on the web.

Thanks again for being a tremendous resource!!

Scott Jones

On 1/26/06, Les Watling <watling at hawaii.edu> wrote:
>
> Google images produced only 3 images of this beast. Two were from
> South Carolina and are of preserved animals where all the color is
> gone. The third is from University of Delaware and is a beautiful
> shot of live (?living) worm. The collar is visible as are the brown
> and white striped gills.
>
> don't know about other images of S. benedicti, but you could use the
> U Del photo as the standard.
>
> Best,
> Les.
>
> At 05:51 AM 1/26/2006, Scott Jones wrote:
> >Hi all,
> >
> >   I was wondering if anyone out there is actively photographing
> > polychaetes under a microscope-- we do it a fair bit in
> >our lab when we find something 'new.'
> >
> >   I am specifically looking for images of Streblospio benedicti.  I
> > am fairly certain that this species is mis-represented in
> >images on the web.
> >
> >thanks for any help,
> >
> >Scott Jones
> >Benthic Ecology Lab
> >Smithsonian Marine Station, Fort Pierce, FL
> >_______________________________________________
> >Annelida mailing list
> >Post: Annelida at net.bio.net
> >Help/archive: http://www.bio.net/biomail/listinfo/annelida
> >Resources: www.annelida.net
>
>
> Les Watling
> Professor of Oceanography and
> Pew Fellow in Marine Conservation
> Affiliate, Yale Peabody Museum
> Darling Marine Center
> University of Maine
> Walpole, ME 04573
>
> January to June 2006:
> Visiting Professor of Zoology
> University of Hawaii at Manoa
> Edmondson Hall
> Honolulu, HI 96822
> cell phone: 808-772-9563
>
>
>
>
>


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