Saturday   November 11, 2000   10:04 am

I think that the "variability" is the peculiarity of a taxon
which shows a certain number of  "variations".

Maurizio
from Italy.

-----Messaggio originale-----
Da:     helmut nisters [SMTP:[log in to unmask]]
Inviato:        sabato 11 novembre 2000 7.49
A:      [log in to unmask]
Oggetto:        variability and variation

Dear Conchlers,

Maybe that I can't understand 2 terms in English language: variability and
variation. If a species or subspecies
within a population from the same population shows some differences as a
band (lighter or darker) or without
band (like some species of Chilostoma) I'll speak from a wideness of
variability. In sense of of the rules of
nomenclature variation is nearly the same as form or abberation. Former
some subspecies now or less than
a subspecies have been called forma or variation.
Please tell me your opinion or explain me the difference of vaiability and
variation
thanks
with best shelling greetings
Helmut


Helmut "Helix" Nisters
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