Dear Kobie,
I bought it off a list from E.J.Brill in the Netherlands (or maybe Christa
Hemmen Conchbooks?) about 10 years ago. It is a very useful book for African
Freshwater snails. When I get a chance I will see if I have a record of
price etc. I think I may have seen it advertised recently
Geoff


>From: Kobie Du Preez <[log in to unmask]>
>Reply-To: Conchologists of America List <[log in to unmask]>
>To: [log in to unmask]
>Subject: Re: info. on african freshwater snail?
>Date: Thu, 1 Nov 2001 08:16:47 +0200
>
>Dear Geoff, I would like to obtain a copy of that book. Do you know where I
>can find it?
>
>Kobie, from south africa
>
> >>> [log in to unmask] 11/01/01 04:28AM >>>
>Dear Steve,
>Looking in Freshwater Snails of Africa and their Medical Importance, Brown
>D. 1980 it states that Tiphobia horei lives on muddy substrate from the
>waters edge down to 100-125m and is particularly abundant on alluvial
>sediment near the mouths of rivers. Elsewhere interestingly it states that
>below 150-200m the concentration of hydrogen sulphide is toxic.
>Geoff


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