Plate 2. 



Fig. 1. Hyalonema hianchoratum. Macramphidisc ; x 300. 



" Dermal pinule ; x 100. 



" Dermal pinule ; x 100. 



" Dermal pinule ; x 100. 



" Macramphidisc ; x 300. 



" From a photograph ; }-. 



" Mesamphidisc; x 300. 



" Macramphidisc ; x 300. 



" Micro-oxyhexact ; x 300. 



" Micro-oxyhexact ; x 300. 



" Micro-oxyhexact; x 300. 



Micro-oxyhexact ; x 300. 

 Macramphidisc; x 300. 

 Mesamphidisc ; x 300. 

 Mesamphidisc ; x 300. 

 Macramphidisc; x 300. 



