Table 5. Procrustes distances between mean shapes of species after standardization to common values of dimensions-derived parameters ellipticity, elongation, regularity, and roughness (significant at P<0.0001, except where stated).

	AS	AT	CG
Common Ellipticity
AT	0.0871
CG	0.1779	0.1500
MA	0.1520	0.1392	0.1129
Common Elongation
AT	0.0869
CG	0.1777	0.1487
MA	0.1519	0.1380	0.1130
Common Regularity
AT	0.0945
CG	0.1325	0.0633 (P  =  0.010)
MA	0.1519	0.0989	0.1079
Common Roughness
AT	0.0809
CG	0.1775	0.1477
MA	0.1543	0.1329	0.1173

AS, Arvicola sapidus; AT, Arvicola terrestris; CG, Clethrionomys glareolus; MA, Microtus arvalis.