Museum, University of Nebraska State


Date of this Version



Annals of the Carnegie Museum (November 2, 1977) 46: 245-264.


Copyright 1977, Carnegie Museum of Natural History. Used by permission.


The tropical pocket gopher (Geomys tropicalis). which exhibits no chromosomal or genic variation, was examined for variability at the morphometrical level. Univariate and multivariate analyses were used to determine age, sexual, and geographical variation. Significant differences were found between different age classes and between sexes. The amount of individual variation was comparable with other rodents and did not exhibit the reduced variation expressed at the chromosomal and genic levels, G. tropicalis is considered to be a monotypic species.