Anatomy of the Alligator. 291 
Shoulder-Joint. 
Weight. Azimuth. 
Be a 8 ee 3°12 oz. 0° 
Mey TRUM MONNOE. 660s. oe ee lh iid ops 0-18 ,, 2° 
3 BmreanUe BOR i eee ie 0:95 ,, 14° 
SUE AEORDUIOTIS 6. 5 kes oe ee et cess 0:84 ,, 346° 
Mi pevoralis MAJOR. 0's fa. 6. ives S 7°68 ,, 129° 
i OOCOTALIS MINOT <i. 6s. <a s oe ee ODT ,, 190° 
G. reens bhumeri... ...,.... +. 2.1.42 0-46 ,, 258° 
Pe UOOOID 3. reine ad isin wabinws © 1-63 ,, 310° 
EE ae ee 0-28 ,, 342° 
Total. ig. 15:71 oz. ay. 
The resultant moment of latissimus dorsi and subscapularis 
passes through a line coinciding almost exactly with the line 
of teres major; and these three muscles are intimately asso- 
ciated in their action. 
If we arrange the pelvic and scapular muscles in parallel 
columns according to their admitted relationships, we shall 
obtain the following comparative table :— 
Comparison of Pelvic and Scapular Muscles. 
Pelvic Muscles. 
Scapular Muscles, 
\ 
3.2 
5 
a 
( Gracilis 
\ Adductor longus 
Rectus femoris 
Sartorius 
Lliacus 
Psoas magnus 
Marsupiales 
eee eee 
Obturator externus 
Quadratus femoris 
Ext. fem. caudalis } 
Biceps femoris | 
Pectineus 
Adductor brevis 
Adductor magnus 
Semitendinosus . 
Semimembranosus 
4, 
5. 
6. 
7. 
Triceps humeri 
Leres.-major 4.6. 
Subscapularis ...... 
Latissimus dorsi .... 
Wanting. 
Pectoralis major .... 
Wanting. 
Pectoralis minor .... 
Biceps humeri 
Deltoideus 
Spinati 
129° 
Many important deductions might be made from the pre- 
