4 86 



BERGONIA. 



GENUS 147. BERGONIA TEMPERE, 1891. 



Valve almost circular, slightly con- 

 vex, with cellular structure, interrupted 

 by two large hyaline spaces, subreni- 

 form, opposite one another, and 

 inclined to one another at an angle of 

 40. Each hyaline area encloses at 

 its median and dorsal portions a small 

 oblong ocellus, whence arise two 

 silicious inflations, running in a 

 direction towards the apices of the 



Fig. 221. Bergonia Barbadcnsis. hyaline Spaces. 



This genus only comprises one species, Bergonia Barbadensfs Temp. (fig. 

 221), from the Barbadoes deposits. My figure is drawn from a photograph 

 which I made from a valve Mr. Tempere was good enough to entrust to me. 



GENUS 148. EUPODISCUS EHR, 1844. 



Fig. 222<5. Eupodiscus Argus. 

 Girdle view. 



Fig. 222rt. Eupodiscus Argus. 

 Valve view. 



