p. Z. S. 1920, BAYLIS & LANE, PI. V 



s m p 



20 



c.t 



■sp. 



-8 Q 



§k 



M-6 



/-M ' 



22 



4--r 



2-7 



21 



%' 



.1-5 



/ 

 I 



Bale & Danielsson, L* 



GNATHOSTOMID-d . 



