FIG. 3. Conchological diOEerentiation among the homozygous genotypes Aat 1 in Selection and habitat-speci®c allozyme variation in the self-fertilizing land snail Cochlicopa lubrica (O. F. MuÈller)

FIG. 3. Conchological diOEerentiation among the homozygous genotypes Aat 1`20 ' and Aat 1`80' of Cochlicopa lubrica. The two groups are very similar with respect to the four shell dimensions. Discriminant scores are extracted with`shell height',`shell diameter',`diameter of the last whorl' and`diameter of the penultimate shell whorl'. Data of 316 shells are incorporated.