528 MOODIE. [Vor. XIX. 
some eight miles southwest of Lander. These skulls were 
described in 1905, by Dr. Branson (17), as two _ species, 
Anaschisma browni for the larger specimen (Figs. 12, 14.), and 
A. brachygnatha for the smaller skull. From my own study 
of the type specimens, I believe that the latter is but a youth- 
ful form of the former species. This is evidenced in several 
Fic. 12.—The larger skull of Anaschisma browni Branson, showing 
distribution of canals. After Branson. One-fourth natural size. 
particulars. The skull designated A. brachygnatha is nar- 
rower and shorter than the skull designated by A. brown. 
The broadening and lengthening of the skull would, of course, 
come with age. The vascular pits on the upper surface of the 
smaller skull are weaker and their borders are not so clearly 
defined as in the large skull. The position of the orbits is 
slightly different in the two skulls, but not enough to be of 
specific importance, and the difference is, in all probability, an 
