CASE 



PLATE 2 



A. Posterior surface (if skull of HuHliun'a perfecta. X0.3. 



B. Enlarged view of portion of the palatine and maxillary of same, showing the 



teeth opposite the internal nares. The labyrinthine structure is 

 clearly seen. X2. 



C. Metoposaunu(f) jonesi, No. 3814, U. of Mich. X0.3. Ventral surface of 



clavicles and interrlaviclcs. 



