PLATE 2 2 



Fig. I. Dinichthys magnificus, n. sp. Cast of postero-ventrolateral belonging to 

 type specimen; inner view. X \. E 2381, p. 42. 



Fig. 2. Copanognathiis crassiis, n. g., n. sp. Microsection of type mandible, 

 p. 84. 



Fig. 3, 4. Copanognalhiis crassiis, n. g., n. sp. Sections of type mandible; natural 

 size. 3, section near posterior e.xtremit}-; 4, section at about first third, p. 84 



242 



