FIG. 4 in Sibling species in the marine pollution indicator genus Pontonema (Nematoda: Oncholaimidae), with a description of mediterranea sp. nov.

FIG. 4. Multidimensional scaling (MDS) ordinations for Pontonema females based on character subsets. Dissimilarity measure for data is normalized Euclidean distance. Sites K, C, T, S, G and B correspond to Kiel fjord, Cornelian Bay, Tyne Estuary, SeÁte, Garroch Head (Firth of Clyde) and Bay of Blanes, respectively. (a) Ordination of character 6, stress= 0.23; (b) ordination of characters 1 and 6, stress = 0.00; (c) ordination of characters 1, 8 and 9, stress = 0.09; (d) ordination of characters 1, 8, 9 and 10, stress= 0.17.