Olivier
I agree with what Dan says - this is not one of the southern australian
limopsids.
Definitely Tucetona
possibly also flabellata if the data is correct
Unfortunately do not have access to my books at  the moment
Geoff


>From: Dan Teven <[log in to unmask]>
>Reply-To: Conchologists List <[log in to unmask]>
>To: [log in to unmask]
>Subject: Re: tucetonoid limopsis
>Date: Wed, 19 Apr 2006 23:50:34 -0400
>
>Olivier,
>
>I have a copy of Bivalves of Australia (vol. 1 Lamprell & Whitehead, vol. 2
>Lamprell & Healy) and I didn't see anyone else answer, so...
>
>Your shell is not Limopsis tenisoni.  L. tenisoni is asymmetrical, has
>finer ribs and some concentric sculpture.  The most similar-looking
>limopsid from South Australia is L. tenuiradiata Cotton, 1930, which is
>nearly symmetrical.  But its ribs are still too fine, it has too many
>teeth, and the teeth are oriented differently (the two rows are more
>parallel than they are in your shell, where they point almost at each
>other).
>
>Limopsis woodwardi A. Adams, 1863 (depicted only with periostracum) also
>has the teeth-angle problem, but other than that it resembles your shell.
>However, L. woodwardi ranges from the Gulf of Carpentaria to the Northern
>Territory.  If the ID on your shell is wrong, the data may be wrong as
>well: it may just be the wrong label.
>
>In my opinion your shell most closely resembles Tucetona hoylei (Melvill &
>Standen, 1899), from the Torres Strait.  It gets up to 24 mm in size, and
>the illustrated shell is a very close match for yours, except for a little
>more red-brown inside.
>
>If you know the data is correct, then you probably have Glycimeris
>(Tucetilla) mayi Cotton, 1947 instead.
>
>- Dan
>
>   ----- Original Message -----
>   From: Olivier Caro
>   To: [log in to unmask]
>   Sent: Wednesday, April 19, 2006 11:24 AM
>   Subject: tucetonoid limopsis
>
>
>   Dear List,
>
>   This shell (see link below) looks like a little Tucetona
>(Glycymerididae), but arrived with a surprising label: Limopsis tenisoni
>(Tenison Woods, 1877)... or 79?
>   It has been fished at 6-8m deep, in mud, in South Australia.
>
>   http://www.idscaro.net/sci/tucetonimopsis_sp.jpg
>
>   As you can see in the picture, the shell is symmetrical, with large
>ribs, two features that I never noticed in Limopsidae, for the moment and
>according to my humble experience (without forgetting the fact that a
>Limopsis is usually less or more hairy). If my eyes show me some thruth,
>both families may have the same kind of hinge teeth and sockets, and this
>could explain a possible misidentification, within this Limopsoidea group.
>
>   Australian shellers, any idea of what this animal is ?
>   Thanks in advance
>
>   Olivier Caro

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