PROCEEDINGS OF THE NATIONM^ MUSEUM. 



VOL. 66 



Table of measurements of Sibbaldus musculus, No. 43767 U.S. National Museum — 



Continued. 



Measure- 

 ments. 



Per cent 



of greatest 



length. 



Vertebrae — Continued. 

 Axis: 



First dorsal (8), length of transverse process mm__ 



First lumbar (22), neural spine meters.. 



First lumbar (22), length transverse process mm.. 



First caudal (36), height of neural spine do 



First caudal (36), length of transverse process do 



Chevrons (height). 



First do 



Seventh do 



Scapula. 



Height from middle of glenoid margin do 



Breadth, greatest meters. . 



Length of acromion mm.. 



Breadth of acromion at distal end do 



Length of coracoid do 



H^lmerus, 



Total length do 



Breadth at distal extremity do 



420 

 L31 



480 

 670 

 300 



90 

 360 



940 

 1.45 

 480 

 250 

 200 



580 

 330 



16. 2 

 25. 



EXPLANATION OF PLATES. 



Plate 1. 

 Skull, dorsal aspect. 



Plate 2. 

 Skull, ventral aspect, 



Plate 3. 

 Skull, lateral aspect. 



Plate 4. 

 Atlas, anterior aspect. 



Plate 5. 

 Axis, anterior aspect. 



Plate 6. 

 Sternum, outer aspect. 



Plate 7. 

 Right scapula, outer aspect. 



Plate 8. 

 Left fore limb, inner aspect. 



Plate 9. 

 Pelvic elements. 



o 



