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 _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp