Hi Andrew, I believe all of the slugs including ones with spots are the native “Pacific Bananaslugs” Ariolimax columbianus (Gould in Birney, 1851).  The slug labeled “Nacktschneck 2”  is a different introduced species Arion rufus (Linnaeus, 1758), the Chocolate Arion, which comes in dark brown as well as orange color forms.  The snail photo is Helix aspersa now more commonly named Cornu aspersum(Müller, 1774).  There are still competing claims as to which name is correct.  I use the latter.  Nice photos!  Bert Bartleson, Olympia WA. President, Pacific Northwest Shell Club

From: Conchologists List [mailto:[log in to unmask]] On Behalf Of Kay Lavalier
Sent: Thursday, December 08, 2011 6:42 PM
To: [log in to unmask]
Subject: [CONCH-L] Need Northwest USA Slug I.D. Help, Please

Dear All:

I have posted a few photos of land slugs from Oregon and California on Panoramio at the following page:

http://www.panoramio.com/user/1390679

Please help me to properly I.D. these (at least 2, maybe 3) species.

I also got one good shot of Helix aspersa (is this correct, or is it now a different genus?):

http://www.panoramio.com/user/1390679?comment_page=1&photo_page=2

Thank You,

Andrew Vik


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