Andrew Grebneff wrote:

> H. kamtschatkana appears to grade with latitude, the assimilis form
> being the southern end of the grade.
>
> Subspecies are a poor idea and are being abandoned by many taxonomists.

* "...the subspecies was a Cheshire Cat, and the more you looked at it,
the more it disappeared." - Slater, 1978 -
http://pinicola.ca/kitchen.htm#fridge

fred.
------------------------------------------------------------
          Frederick W. Schueler & Aleta Karstad
Bishops Mills Natural History Centre - http://pinicola.ca/bmnhc.htm
Thirty Years Later Expedition - http://pinicola.ca/thirty/
Longterm ecological monitoring - http://fragileinheritance.ca/
Portraits of light - http://www.aletakarstad.com/
Mudpuppy Night in Oxford Mills - http://pinicola.ca/mudpup1.htm
     RR#2 Bishops Mills, Ontario, Canada K0G 1T0
   on the Smiths Falls Limestone Plain 44* 52'N 75* 42'W
    (613)258-3107 <bckcdb at istar.ca> http://pinicola.ca/
------------------------------------------------------------
------------------------------------------------------------

----------------------------------------------------------------------
[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.
----------------------------------------------------------------------