Hi Andrew,
In answer to your question on Conch-L
11/29/97 Rain Forest - Grenada
Polydontes perplexa (Ferussac,1821)
Found by chance on a concrete retaining wall after a rain storm by
me.
Listed in Abbott's Compendium of Land Shells - Page 139 as extinct
A pair, now living since date of find in a glass fish tank in my
home.
However they are not breeding as yet
Mel S.