> I do know that there seems to be at least
> one flava-like form in the Ozark region that differs from standard
> flava, and that flava goes west at least to the Calcasieu River in
> Louisiana.
Thanks for the tips, David. That sounds like you may not be totally
convinced that any of the Texas forms will turn out to be true
F. flava, which would make the taxonomy interesting. Are you
still doing the sequencing, or are you just trying to sort through
the data?
Cheers,
Don
----- Original Message -----
From: "David Campbell" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, September 16, 2009 9:57 AM
Subject: Re: [CONCH-L] Unionid (Fusconaia) ID Problem
>> David, I was glad to hear you were doing molecular work on the southern
>> Fusconaia and Pleurobema species, and I'm looking forward to the results.
>> Without stealing any of your thunder associated with your future
>> publications, can you offer opinions on the shell pics I posted? There
>> is
>> one other large Trinity River form that I didn't photograph that looks
>> very
>> much like Burch's figure of Fusconaia cuneolus, including the rays. They
>> don't really show much of a median sulcus like they should if they were
>> that
>> species, though. Some are fairly inflated and some are compressed, but
>> they
>> are otherwise very similar.
>
> At the moment, I am hoping to see some genetic variation that will
> help me decide what morphological variation is significant. In other
> words, I'm not especially confident about my ability to sort out the
> Texas forms on photos yet. I do know that there seems to be at least
> one flava-like form in the Ozark region that differs from standard
> flava, and that flava goes west at least to the Calcasieu River in
> Louisiana.
>
> cuneolus is a Tennessee River endemic form.
>
> In general, what river system it's from is one of the most important
> clues to identifying freshwater mollusks.
>
> --
> Dr. David Campbell
> 425 Scientific Collections
> University of Alabama
> "I think of my happy condition, surrounded by acres of clams"
>
> ----------------------------------------------------------------------
> [log in to unmask] - a forum for informal discussions on molluscs
> To leave this list, click on the following web link:
> http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
> Type your email address and name in the appropriate box and
> click leave the list.
> ----------------------------------------------------------------------
----------------------------------------------------------------------
[log in to unmask] - a forum for informal discussions on molluscs
To leave this list, click on the following web link:
http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
Type your email address and name in the appropriate box and
click leave the list.
----------------------------------------------------------------------
|
