540 



3225. The first dorsal vertebra. 



This vertebra is characterized by the large size of the anterior zygapophyses and by the 

 size and position of the articular surfaces for the head and tubercle of the first rib, with the 

 semioval articulation for half the head of the second rib, on each side. 



3226. The middle dorsal vertebra. 



It has a strong metapophysial ridge above the diapophysis ; a very long neural spine ; 

 and the base of the neurapophysis is directly perforated by the spinal nerve on each side. 



3227. One of the ribs. 



3228. A shorter posterior rib. 



In this the articular surfaces of the head and tubercle are confluent. 



3229. The right scapula. 



3230. The proximal phalanx of the large functional digit, or ' great pastern bone/ 

 of the fore foot. 



3231. The middle phalanx of the same digit, or ' small pastern bone.' 



3232. The ungual phalanx of the same digit, or ' coffin bone.' 



3233. The sesamoid of the same digit, or ' nut-bone.' 



3234. The left os innominatum. 



3235. The proximal phalanx of the large functional digit of the hind foot. 



3236. The middle phalanx of the same digit. 



3237. The ungual phalanx of the same digit. 



