ENTOPYLA. 



339 



GENUS 59. ENTOPYLA EHR, 1841. 



Valves furnished with dissimilar costae, the inferior concave with 

 terminal nodules, the superior convex without nodules. Girdle face 

 curved arcuate, showing several false internal septa. Frustules 

 parasitic, united in short chains, stipitate. 



Fig. 96, Entopyla Australia, 



