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ANATOMY OF PETROGALE XANTHOPUS. 707 
Fig. 9. 
Cervical and Brachial plexuses of Petrogale. 
Sterno-mastoid §.Sc. Suprascapular nerve. 
Pectoral muscle. M. Median nerve. 
‘Teres major. - §,8', 8’. Subscapular nerves. 
Coraco-brachialis. O.N & Ay. Cireumflex nerve and 
Longus colli. | artery. : 
Latissimus dorsi. M.S. Musculo-spiral nerve. 
Biceps. _ T.M.Ay. Internal mammary artery. 
Great auricular nerve. U. Ulnar nerve. 
Spinal accessory nerve. V.Ay. Vertebral artery. 
Descending branches. I.L. 1st thoracic nerve. 
Phrenic. 
