>Clithon is a genus in the Subfamily Theodoxinae of the family Neritidae.
>This link has a key to the genus Clithon
>http://www.aecos.com/CPIE/inv_04.html
Tom Eichhorst is the list expert on Neritoidea. Opinion, Tom?
To my knowledge the Recent Neritidae has the following subfamilies:
Neritinae (includes Clithon)
Neritiliinae
Septariinae
Smaragdiinae
There will be numerous extinct subfamilies... the group has a VERY
long fossil history. According to Klaus Bandel Neritoidea is the most
primitive living gastropod superfamily.
--
Andrew Grebneff
165 Evans St, Dunedin 9001, New Zealand
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