PLATE XLIL 



FIG. 



1. SCHIZOPORELLA siNuosA, p. 266; with the peristome 

 slightly developed. 



2. , var. a (ARM AT A). 



3. , with numerous large foramina, and ooecia 



showing the central pore. 



4. , tessellated var. 



o. 



6. , a young cell showing the primary orifice. 



7. SMITTIA CHEILOSTOMA, p. 349; with oo3cia. 



u 



9. SMITTIA BELLA, p. 352. After Busk. 



10. , with ocecium. Ditto. 



