EXPLANATION OF PLATE XXXVL 



Palatine boues of Pyllionomorpha, onu-half uatunil size : a, from tbo outsiUe ; h, from tbe inucr side ; and, 



c, from below. , 



Fig. 1. Liodon clyapelor. 



2. Liodon proriger. 



3. CUdastes tortor. 



4. CUdastes stenops. 



5. Flaiecarpus curtirostris. 



6. Flatecarpua cort/phcctis. 



7. PJalecarpua ictcricua. 



