Cluster analyses of values for hue, value, and chroma (based on Munsell soil-color charts) obtained at 6 points on pelages of 202 adult piñon mice (Peromyscus truei) from the northern Great Basin and environs produced dendrograms with specimens grouped into 5 clusters. In most instances distribution of specimens forming clusters reflected those published for nominal races. In instances in which previous distributions of nominal races were not supported and for specimens previously unclassified, geographic distribution of groups of color morphs was logical and suggested avenues for additional research on geographic variation in the species.
Carraway, Leslie N. and Verts, B. J.
"Geographic variation in pelage color of piñon mice (Peromyscus truei) in the northern Great Basin and environs,"
Western North American Naturalist: Vol. 62
, Article 7.
Available at: http://scholarsarchive.byu.edu/wnan/vol62/iss4/7