Fig. 17 in The Cross River Gorillas: A Distinct Subspecies, Gorilla gorilla diehli Matschie 1904

Fig. 17. Plot of 3rd manual ray length vs. length of 5th manual ray in Cross River gorillas and in non­Cross­River western gorillas. Least square regression of non­Cross­river gorillas datum points fits a line with a slope = 0.9789, y' = 33.78, adjusted R2= 0.91.