438 



DR. C. F. SONMTAG ON THE 



Text-figures 1-5. 



Text-figs. 1-4. — Variations in the digastric muscle of the Rhesus Macaque 

 {Macacus rhesus). 



Text-fig. 5. — The digastric muscle of the Common Macaque {Macacus 

 fascicidaris). 



A.B.D. : Anterior belly of the digastric muscle. P.B.D. : Posterior bellies of the 

 digastric. M.H. : Mj'lo-lij'oid muscle. MEM.: Membrane. F.B. : Fibrous bands. 

 S.M.G. : Submaxillary gland. 



