Measurements of volar (hand) pad area were made for 244 specimens, representing 12 species and 4 genera of galagos (sub-family
Galaginae). When corrected for body weight, statistically significant differences were identified, at both the genus and species
levels in the areas of the volar pads. Most informative, in terms of taxonomic differences, were measurements of two of the
five pads; interdigjtal pad number 4 and thenar pad number 5. Closely related species were distinguishable on the basis of
these measurements. The thick-tailed galago (
Otolemur crassicaudatus) was separate from Garnett's galago (
O. garnettii) and the specific status of the silver greater galago (
O. argentatus) was supported. Likewise, the two needle-clawed galagos (
Euoticus elegantulus and
E. pallidus), recently separated on mitochodrial DNA grounds, were found to differ significantly in their volar pad morphology. These
studies show that comparative studies of volar hand pad morphology provide a novel approach to the re-assessment of galago
taxonomy, and may be applicable also in taxonomic studies of other prosimian groups.
Key words Prosimian - Bushbaby - Taxonomy - Morphology - Hand pads