Minireview : Old Species and New Concepts in The Taxonomy of Pomacea (Gastropoda: Ampullariidae)
NÉSTOR J. CAZZANIGA
BIOCELL, Vol.26, Suppl.S, pp. 71-81, 2002
Abstract
The taxonomic history of the South American genus Pomacea Perry, 1810, and some shifts of systematic concepts during recent decades are briefly reviewed. Too many pre-evolutionist, shell-defined species created a gibberish, the only acceptable solution of which being perhaps a conventional, somewhat authoritarian decision based on expertise. The addition of other sources of morphological, biochemical, ecological or genetic information should not solve the problem if it is not accompanied by a sound reappraisal of the species concepts. Since the assumptions of each concept differ, any correspondence between them is irrelevant, and may drive to incompatible More >
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