green: ENCHODUS in KANSAS MUSEUM. 101 



The dentary shown in plate XII, figure 1, specimen No. 820, 

 has a relatively shorter fang, the other large teeth much closer 

 together, and the stout mesial bar-like portion just ventral to 

 the alveolar border, proportionally much deeper dorso-ven- 

 trally than the corresponding part of the dentary in specimen 

 No. 174. This last characteristic appears to be due to com- 

 pression, and the arrangement of the teeth is probably only a 

 variation. 



Measurements : 



mm. 



Length of the fang 15 



Average diastema 4.5 



Specimen No. 831, shown in plate XIV, figure 1, represents 

 an individual which was about one-fifth as large as the speci- 

 men first described. No. 814. Only the left palatine, the right 

 articular, the caudal end of the skull, and an undetermined 

 bone, represented. The palatine shows the cephalo-dorsal 

 process over the base of the fang. The ventral surface of the 

 skull is exposed. 



Measurements : 



mm. 



Length of palatine fang 7 



Length of articular 44 



Greatest depth of the articular 15 



Width of the skull at the sphenotics 00 



Width of the caudal end of the skull ■. . . 25 



Specimen No. 821, shown in plate XIV, figure 2, is about 

 one-third larger than No. 831. It is very fragmentary. 

 Enough of the proximal end of one of the palatine fangs is 

 present to show that they were distinctly grooved. 



Measurements : 



mm. 



Greatest depth of the articular 19 



Length of alveolar border of dentary 65 



Length of dentary fang 10 



Length of premaxillary % 39 



Specimen No. 808, shown in plate XIII, figure 1, is disarticu- 

 lated, and thus displays clearly the shape of several elements 

 not so well exhibited in the other specimens. The supra- 

 clavicle, epihyal, subopercular, hyper- and hypocoracoids, are 

 very nearly perfect. The ethmoid is attached to the frontals 

 caudally. The bone labeled bs has its upper concave sui-face 



5— Univ. Sci, Bull.. Vol. VII. No. 2. 



