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Xenosaurus grandis and former X. rackhami taxon question

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Posted by 59herps on February 20, 2003 at 00:34:49:

Ok.... Here is my question. Xenosaurus grandis and Xenosaurus rackhami were considered seperate species until recently. Xenosaurus rackhami had a subspecies called X. r. sanmartinensis. This subspecies is very similair to rackhami differing mainly in scalation. It has become a subspecies due to population isolation in the crater of a volcanoe. When rackhami became a subspecies of X. grandis X. r. sanmartinensis became X. g. sanmartinensis. But technically isn't sanmartinensis a subsub species of a sub species of a species? Since it descended from rackhami which descended from grandis, instead of from the normal grandis.
-Devlin

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