130 



DINOCERATA. 



The Anterior Dorsal Rics. (Woodcuts 125-132, below.) 

 The second rib in one species of Uiiifathrriiiin is represented in tlie 

 figures below. 



Fii:. 12.-. Fig. 120. Fir,. 127. 



* H' (i 



Figure 12j — stiomi iib of Uinlatherium latijrons, Marsh (No. 12:il); [justerioi view. 

 FiGURK 12(j- llicsiUR 111); IVoiit view. 

 Figure 127 — I lie ■■iiiii uli; ininT view. 

 Figure lis — ihe '-iur mIi; in-n.^iiual end. 

 Ji. head ; I. liilierde. 



All the tigiiira are oac-foiirth natural size. 



The secoiiil rib is niucli longer, and less robust, than the first, above 

 described. '^Fhe head is large, and the two articular faces on it are 

 confluent. The tubercle is well developed, and at nearly the same level 

 as the head. The .shaft is only moderately curved, and considerably 

 compressed. The distal end is flattened, and wider than the shaft. 



