Wolfe, James L.Layne, James Nathaniel.2005-10-062005-10-061968http://hdl.handle.net/2246/25617 p. ; 24 cm.Includes bibliographical references (p. 7)."Variation in the development of the mesoloph and frequency of occurrence of the mesostyle, mesostylid, and ectostylid on the first and second molars were studied in four populations of the Florida mouse, Peromyscus floridanus. Degrees of similarity between populations based on these characters correlated well with presumed amount of gene flow between them. The molars of a population from an open woodland habitat showed a tendency toward simplification as compared with populations inhabiting dense, scrublike vegetation. No significant differences in mesoloph development ocurred in samples of two populations collected four and eight years apart"--P. 6-7.573329 bytesapplication/pdfen-USQL1 .A436 no.2351, 1968Peromyscus floridanus -- Variation.Molars.Mice -- Variation -- Florida.Mammals -- Variation -- Florida.Rodents -- Florida.Mammals -- Florida.text