Collin R. (2003) The utility of morphological characters in gastropod
phylogenetics: an example from the Calyptraeidae. Biological Journal of the Linnean Society 78: 541–593.
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Collin, R.
2003
The utility of morphological characters in gastropod
phylogenetics: an example from the Calyptraeidae
i>Biological Journal of the Linnean Society</i