Hi Tom Thanks for the pictures and info. From the looks of it, you are definitely right about the Vittina coromandeliana, and the Septaria porcellana is spot on. However, the species sold to us as "Clithon brenspinas" is completely different: the snails we receive under this name have identical shell morphology to the Vittina coromandeliana, but a more reddish background with spots instead of stripes - they are known by the common name of Ruby Nerite. Perhaps they are simply a colour variant of the Vittina coromandeliana, and not a separate species at all. The plot thickens . . . All these snails do very well here in our freshwater tanks, living perhaps 3 or 4 years, growing to about 3/4 of an inch, and keeping the tanks really clean (apart from dozens of egg capsules). It is quite rare to lose a snail. However, for reasons unknown the Septaria do seem to be harder to keep alive (not to mention impossible to get off the glass if you want to move them!) and because of this are not commonly sold. Thanks for taking the time to send me all these details. Kind regards, Anna ---------------------------------------------------------------------- [log in to unmask] - a forum for informal discussions on molluscs To leave this list, click on the following web link: http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1 Type your email address and name in the appropriate box and click leave the list. ----------------------------------------------------------------------