Discriminant function analysis was used to develop a simple and practical formula for classification of a sample made up of two morphologically very similar species, Vitrea contracta and V. crystallina. By using three variables: number of whorls, breadth of the last whorl and height of the shell, a discrimination function was obtained which effectively discriminates between the problematic young specimens of these two species. Probability of misclassification of a small individual is 0.02. 6 pp., 4 figs, gr. 8.

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Bibliographic Details

Title: Multivariate Morphological Discrimination between Vitrea contracta (Westerlund) and V. crystallina (M�ller) (Gastropoda, Zonitidae)
Publication Date: 1986

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Founded in 1985 we are specialized in worldwide literature on Mollusca and marine invertebrates. Our publishing house has meanwhile published approximately 60 titles on that field of interest. We have stocks of most available international books on Malacology and a huge amount of antiquarian literature, even of the latter most titles are only available once.

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ConchBooks
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