196 MR. R. H. BURNE ON THE 



In the Okapi, Antelopes, and Sheep this lymph-gland is not 

 so deeply embedded as in the Giraffe, and in the Okapi (text- 

 fig. 1, l.g.) consists of two globular masses separated from the 

 submaxillary gland by a capsule of fibrous tissue. 



Text-figure 11. 



Blood-vessels at the root of the tongue of a Giraffe. 



ff.gl.m., genioglossiis muscle; g.hy.m., geniohyoid muscle; h.gl.m., hyoglossus 

 muscle; hy.a., hyoidean branch of lingual artery; La., lingual artery; l.v., 

 lingual vein ; sl.a. & v., sublingual artery and vein ; st.gl.m., styloglossus 

 muscle ; v. a., venous anastomosis ; v.pl., venous plexus. 



XII. Hypoglossal nerve. 



The lingual arteries of the Okapi and Giraffe agree in many 

 particulars and show several, though small, differences from those 

 of Antelopes. 



In both, the lingual artery arises from the carotid independently 

 of the facial (text-figs. 1, 3, f.a.), as it is stated to do normally 



