The Myology of Chimpanzee and Baboon. 437 
In his orang, Primrose found a fasciculus from the latissimus 
dorsi to the tendon of the teres major, similar to the one I have 
described in the baboon. Hepburn describes a similar condition 
in a chimpanzee and in an orang. He states that the tendons 
of the latissimus dorsi and of the teres major are joined in the 
gibbon. The fascicular connection in the higher forms denotes 
an earlier joining of the teres muscles; however, in my baboon, 
Fic. 1. The side view of the baboon; the left armis raised to show the insertion. 
of the Latissimus dorsi. A, pars abdominalis of pectoralis major; B, biceps; 
C, Coracobrachialis; ZH, Tendon of insertion of Latissimusdorsi; Z, Lattissimus 
dorsi; P, Pars costo-sternalis of Pectoralis major; Rk. Teres Major; S, Serratus 
anterior; 7’, Triceps; U, Lattissimo-condyloideus; Y, Fasciculus from Latissimus 
dorsi to teres major. 
where this is present, the insertions themselves are further sepa- 
rated than in my chimpanzee, where it is absent. Vrolik, Chap- 
man, Hepburn, Beddard, Duvernoy and so many others describe 
the latissimo condyloideus that we may well believe that it is 
present in all anthropoids. It is interesting: to note that it is 
poorly developed in the chimpanzee, for in man it occurs only as 
