Figure 4From: Cryptic phenotypic plasticity in populations of the North American freshwater gastropod, Pleurocera semicarinata Nei's ([1978]) unbiased genetic identities. Based on 11 allozyme loci resolved across the 13 populations of pleurocerids sampled for the present study, with a neighbor-joining tree based on Cavalli-Sforza and Edwards ([1967]) chord distances.Back to article page