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We have acquired $\sim$280 new redshifts of galaxies in the region around Abell 262, NGC 383 and NGC 507, which is situated within the filamentary main ridge of the Perseus-Pisces Supercluster. The dynamics of galaxies in this region is investigated by examining their distribution in spatial and velocity space. Clusters in the ridge appear to have substructure: the N507 group has a very small-scale substructure near its central core, and the N383 group shows the strongest evidence for substructures; it is basically composed of a few compact groups. We also find that the segregation of galaxies of various morphological types is present not only spatially but in redshift space as well; in Abell 262 the mean velocity of elliptical galaxies and that of spirals differ by more than 300kms$^{-1}$, indicating that spirals are not infalling into the core of A262 isotropically. The presence of substructures and the asymmetric infall of galaxies into the core imply that clusters in this region are perhaps still in an early evolutionary stage, accreting neighboring small groups and galaxies in the supercluster. This work was partially funded by the National Science Foundation Grants AST91-15459, AST90-17048 and AST93-47714.
