Results from discriminant function analysis of 34 cranial, dental, and
external morphometric characters. Body mass was not considered in this
analysis. Detailed character descriptions are given in ref. 11.
Functions 1 and 2 (A) show conspicuous discrimination of
M. berthae from other species. Functions 2 and 3
(B) show discrimination of all species. Combined, the
first through third discriminant functions describe 94.5% of the
variance in the data set; 55.9%, 31.7%, and 6.9% for the first,
second, and third discriminant functions, respectively. Dashed lines
are drawn around species clusters for purposes of illustration; they do
not convey statistical information.