56 Merriam—Reptilian Remains from the Triassve. 
decidedly from those of Jchthyosaurus, articulating with one 
head only on the ample facets of the diapophyses and failing 
to show the external groove characteristic of many species of 
this genus. 
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Fig. 1.—Anterior dorsal (?) vertebree of Shastasaurus pacificus gen. et sp. 
nov. One-third natural size. : 
The strong and robust coracoids, one of which, Fig. 2, is per- 
fectly preserved, were proximally much thickened and deeply 
notched on the anterior side. That they met on the median 
line, is shown by the sudden straightening of the distal margin 
shown in the figure. Judging from the small size of the sur- 
face of articulation with the scapula this element was small. 
The articular surface for the humerus being exceptionally large, 
this bone, as well as the whole fore-limb, probably partook of 
Ze 
Fig, 2.—Right coracoid of Shastasauwrus pacificus from below. 
One-third natural size. 
the robust character common in the anterior limbs of Enaliosaurs. 
The coracoids differ markedly from those Wothosaurus, but 
approach the form of this element in some ichthyosaurian 
species. 
