I asked the same question to Conch-L a while ago. And I think it was Henk
Mienis who indicated that the correct name was Oxychilus draparnaudi, even
though the species was described as draparnaldi. I am not familiar enough
with the ICZN to pass an independent judgement on this issue.

Aydin

>-----Original Message-----
>From: Pall Einarsson [mailto:[log in to unmask]]
>Sent: Sunday, April 28, 2002 6:30 AM
>To: [log in to unmask]
>Subject: Re: Oxychilus
>
>
>
>Are there any comments on the draparnaudi vs. draparnaldi issue? It is
>named after Draparnaud, isn't it?
>
>With best regards,
>Pall Einarsson,
>Reykjavik, Iceland
>
>
>At 13:36 27.4.2002 -0400, you wrote:
>>I concur that this is Oxychilus draparnaldi.  Not
>withstanding the shell
>characteristics, the dark animal coloration with grayish
>coloration on the
>foot is identical to specimens that I have collected from
>other locations.
>Many California records for O. draparnaldi from San Francisco
>to San Diego
>dating back a half century or more have been published.
>>
>>At 07:46 AM 4/27/2002, you wrote:
>>Dear Aydin and Conch-L,
>>   You have asked a fair question. My first, unhelpful
>response is that the
>>snail doesn't look like Haplotrema, and does look like Oxychilus.
>>   To be more helpful, let's see. I am looking at the pictures on
>>http://members.telocity.com/~jlmw1815/snails and comparing
>them to Kerney &
>>Cameron (1979 "Land Snails of Britain and North-west Europe",
>p. 123-124 and
>>plates 9 & 10 (Oxychilus)), and Pilsbry (1946, "Land Mollusca of North
>>America" pp 202-230 (Haplotrema)). I see
>>
>>(1) glossy surface: like Oxychilus, unlike Haplotrema
>>(2) smooth surface with few, relatively widely spaced
>"growth" wrinkles:
>>like Oxychilus, unlike Haplotrema
>>(3) brownish shell color: like Oxychilus, unlike most
>Haplotrema, which
>>usually have at least a hint of a yellow-green tint
>>(4) body color dark bluish: like Oxychilus draparnaudi, unlike all the
>>Haplotrema I can think of, which have very pale, almost white bodies
>>(5) last whorl expands very rapidly (being about twice the
>width of the
>>previous whorl: like Oxychilus draparnaudi, also like many Haplotrema
>>species, but definitely unlike Helminthoglypta species. It is
>also unlike
>>most Helminthoglypta in being so flat.
>>
>>   Because the shell appears to have about 5 whorls, it is probably
>>fully-grown or nearly so.
>>   The photos do not show the underside. If the shell is
>indeed Oxychilus
>>draparnaudi, the umbilicus should be relatively small, only
>about 1/8 of the
>>shell diameter. On the other hand, if the shell is
>Haplotrema, the umbilicus
>>would be much larger, being a quarter to a third the shell diameter.
>>   Of course, for a reliable identification, the specimen
>should be sent to
>>an expert for identification. Guesses can be made from
>examining photgraphs,
>>but study of photographs cannot compare to study of the real thing.
>>   Best wishes,   -Tim-
>>
>>Date:    Fri, 26 Apr 2002 09:11:51 -0400
>>From:    "Orstan, Aydin"
>>Subject: Re: Carnivorous land snails
>>
>>Tim,
>>How did you tell it wasn't Haplotrema? Adult Haplotrema
>concavum have a
>>slightly thickened lip. I thought the snail in the picture could be a
>>subadult with a still thin lip (or an Oxychilus).
>>
>>Aydin
>>
>>
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>