EXPLANATION OF PLATE XXXII. 



Crioceras jackii, Eth. fil. 



Fig. 1. Ventral view of a cast wholly devoid of test. The swollen primary 

 coshe with the intermediate secondary costa; are well shown, the 

 former bearing two ventral and two infra-ventral lines of tubercles ; 

 on the left hand side of the figures two of the supra-dorsal tubercles 

 are also visible. This is the typical C. jackii. 

 ,, 2. Similar view of a partly testiferous example, without tubercles. 



(See Plate xxxi., fig. 1; PI. xxxiv., fig. 1). 

 ,, 3. Portion of a septal suture. 



Crioceras axonoides, Eth. fil. 



,, 4. Portion of a septal suture. 



