130 



.MEMOIRS OF THE UNIVERSITY OF CALIFORNIA. 



bars of bone meeting or possibly overlapping at the median line. The ends 

 directed toward the scapulae are unfortunately broken away. The median 



140 



141 



Figs. 140 and 141. Merriamia eitteli (Merriam). Anterior and posterior limbs, X !<> Fig. 140, 

 anterior limb; r, radius; fig. 141, posterior limb; t, tibia. 



ends are broad and are concave on what appears to be the posterior side. As 

 far as can be determined these elements are much like the clavicles of Slmx- 

 tasaurus. An elongated triangular bone situated immediately be- 

 hind the ends of the clavicles may represent the interclavicle. I f 

 this element is represented entire in this specimen, the posterior 

 median arm or stem is very little developed, and is relatively 

 smaller than in any other ichthyosaurian. 



A caudal vertebra of this species (fig. 142) shows a consider- 

 ably elongated form somewhat like that of Toretocnemus. The 

 en d faces are deeply concave and do not show a peripheral flat- 

 tebra, x %. tening of the face. 



Fig. us. Her- 



v'er- 



