Relationship between body size and long bone lengths in Pan and Gorilla.

Measurements of body length (vertex to heel) were abstracted from the field notes of Pan and Gorilla specimens from the Powell-Cotton Museum. Biocondylar femur and humerus length were measured on each skeleton and correlation coefficients with body length were computed. In both the separate sex and the combined sex samples of Gorilla, and in the combined sex sample of Pan, long bone lengths are significantly correlated with body size, but in Pan only 20% of the variance in body length is reflected in the long bone measurements.