538 



physis of the cannon-bone, to be the homologue of the middle digit. The smaller super- 

 numerary hoofed digit answers to the second or index digit. It is separated from its rudi- 

 mental metacarpal by a small portion of the shaft of the middle metacarpal. It does not 

 correspond with either of the normally developed digits of the bisulcate or cloven foot. 



Purchased. 



3207. The bones of the left fore leg and foot of a Pony (Equus Caballus). 



The trapezoides, cuneiforme, and pisifonne are wanting from the wrist. The two sesa- 

 moids are preserved behind the joint of the metacarpal, with the proximal phalanx of the 

 fully-developed digit, and the single sesamoid behind the joint of the middle with the distal 

 phalanx. 



Hunterian. 



3208. The bones of the left hind leg and foot of the same Pony. 



The styliform proximal rudiment of the fibula is wanting. All the bones of the tarsus are 

 preserved, and the sesamoids of the fully-developed digit. 



Hunterian. 



3209. The hoof of the fore-foot of a Horse. 



Part of the sole is broken away. 



Hunterian. 



3210. The hoof of the hind-foot of a Horse. 



It is proportionally narrower than that of the fore-foot. 



Hunterian. 



3211. The moiety of a longitudinally bisected hoof of a horse. Hunterian. 



3212. The skeleton of a Quagga (Equus Quagga). 



The vertebral formula is : 7 cervical, 19 dorsal, 6 lumbar, 5 sacral, and 18 caudal. The 

 last pair of ribs is artificial. 



Mm. Brookes. 



3213. The skull of a male Quagga (Equus Quaff go). 



It differs from the Horse in the smaller proportional size of the last upper molar, especially 

 of the posterior lobe : the antero-posterior extent of the last lower mokr is also relatively 

 less than in the Equus Caballus. The posterior notch of the bony palate extends further 

 forwards. 



Mus. Brookes. 



3214. The skeleton of a Zebra (Equus Zebra). 



The vertebral formula is: 7 cervical, 18 dorsal, 6 lumbar, 5 sacral, and 17 caudal. 



Mus. Brookes. 



