„ , 214 [April 18. 



Cope.] 



Measurements. M- 



Elevation of sagittal crest above foramen magnum 0.045 



Width of bifurcation of crest behind 038 



" occiput behind meatus auditorius 070 



Width between, inclusive of occipital condyles 046 



" temporal fossa at meatus 050 



" meatus auditorius U1 ^ 



" condyle of mandible °^2 



Depth of ramus behind 095 



In further illustration of the species I add measurements of teeth, etc. 

 from another specimen : 



Length of last two superior molars 041 



" last molar 019 



Width of last " ° 22 



Length of inferior molar series 09;> 



" " premolars °^0 



•0°1 

 " " last molar " ■ 



Width " " 0Vd 



Depth ramus at first true molar 040 



Vertebra. The atlas is deeply incised anteriorly above. It is rather 

 short and its transverse processes are flat, thin, about as long as broad 

 and with regular convex distal margin. The arterial foramen issues 

 some distance above and within the notch which marks the anterior base 

 of the transverse process. It enters at the notch at the posterior base. 

 The neural arch is quite convex and its anterior margin is obtusely 

 rounded. The axis is near the same length and bears a prominent and 

 elongate laminate neural spine. Its diaparapophysis is narrow and over- 

 laps the parapophysis behind it three-quarters of an inch ; it is pierced 

 for the cervical artery. The centra of the third and fourth cervicals are 

 about equal in length to that of the axis, but the remaining ones shorten 

 successively to the seventh which maintains a length somewhat greater 

 than its width. The parapophyses of these, except the seventh, are flat- 

 tened and have considerable anteroposterior extent, their extremities 

 overlapping. A short and rather narrow and stout diapophysis is present 

 on the sixth cervical ; on the seventh it is larger, especially expanded 

 antero-posteriorly at the base, and truncate. There is no parapophysis. 

 The fourth, fifth, sixth and seventh have strongly opisthoccehan centra ; 

 that of the third is injured. 



Measurements. M. 



Length of the cervical series §A15 



" atlas, between articular faces 046 



" base transverse process 035 



« of " " 02 ° 



Diameter neural canal in front 021 



" of anterior expanse 050 



" total " °" 



