PLATE XXXVII. 



FIG. 



1. Mastigophora Dutertrei, p. 279. 



3. Mastigophora Hyndmanni, p. 281. 



4. , with ooscia aud punctured margin. 



5. , var. Avith punctured surface and very long 



vibracula. 



G. , var. ENSIFORMIS. 



7. SciiizopoRELLA VULGARIS^ p. 2M'. Scc Plate XV. 

 figs. 5j 6. 



