Plate VI. 

 Diagram of the arteries in Teras XV. 



aa., Anterior aorta ; at., Aortic trunk : ao. cef.. Aorto-cepbalic trunk to lieatl 

 A ; cef., Cephalic artery to head B ; db., Ductus Botalli ; la.. Left auricle ; 

 Iv., Left ventricle; 1. s-cl., Left subclavian; p., Pulmonary (left) ; p. a., Pos- 

 terior aorta ; r. a., Right auricle ; r. v., Right ventricle ; r. s-cl., Right sub- 

 clavian ; v., Right vertebral ; v'., Left vertebral ; I., First rib ; II., Second rib ; 

 III., Diagram representing digastric muscle in heads A and B. 



Arteries in coruponect A : 



f., Facial ; it, Inferior thyroids ; 1. Lingual ; lac. Right lacrymal ; lac'. Left 

 lachrymal ; L. ant. a.. Left anterior auricular ; Ice, Left common carotid ; 

 1. ext. car., Left external carotid; 1. int. mx.. Left internal maxillary; 1. oc. 

 Left occipital ; 1. pa., Left posterior auricular ; 1. sup. tern., Left superficial 

 temporal ; 1. tr. f., Left transverse facial ; m. br.. Muscular branch ; o., Right 

 orbital ; o'. Left orbital ; p. gl.. Right pharnygeal ; p. gl'., Left pharyngeal ; r. 

 ant. a.. Right anterior auricular ; rcc. Right common carotid ; r. ext. car.. Right 

 external carotid; r. int. car.. Right internal carotid; r. int. mx.. Right internal 

 maxillary ; r. oc, Right occipital ; r. pa.. Right posterior auricular ; r. sup tern.. 

 Right superficial temporal ; sup. th., Right superior thyroid ; sup. th'., Left 

 siiperior thyroid ; tr. f.. Right transverse facial. 



Arteries in component B : 



f., Right facial ; f'.. Left facial ; it.. Inferior thyroids ; 1., Linguals ; lac. 

 Laci'ymals ; 1. ant. a.. Left anterior auricular ; 1. cc, left common carotid ; 

 1. ext. car.. Left external carotid ; 1. int. car., Left internal carotid ; 1. int. mx., 

 Left internal maxillary ; 1. oc. Left occipital ; 1. pa.. Left posterior auricular ; 

 1. sup. tem.. Left superficial temporal ; 1. tr. f., Left transverse facial ; m. br.. 

 Muscular branch ; o., right orbital ; o'., Left orbital ; pgl.. Right pharyngeal , 

 pgl'.. Left pharyngeal : r. ant. a.. Right anterior am-icular : rcc, right com- 

 mon carotid ; r. ext. car.. Right external carotid ; r. int. mx.. Right internal 

 maxillary ; r. oc. Right occipital ; r. pa.. Right posterior auricular ; r. sup. 

 tem.. Right superficial temporal ; r. tr. f.. Right transverse facial ; sup. th.. 

 Right superior thyroid ; sup. th'.. Left superior thyroid. 



