PLATE XXIX. 



PAGE 



Figure 1. Bacteriastrum spirillum, n. sp. . . . . . 83 



Figures 2, 11, and 15. Coscinodiscus radiatus, Ehrenb., var. abyssalis, nov. . 165 

 Figure 3. Bacteriastrum varians, Lauder, var. princeps, nov., frustulum terminale 84 



4. Rhizosolenia (?) flaccida, n. sp. . . . . .74 



5. Nitzsehia mammalis, n. sp. . . . . . 68 



6. Bacteriastrum tvallichii, Ralfs, var. hispida, nov. . . . 83 



7. Stauroneis pygmea, n. sp. . . . . .25 



8. Rhizosolenia (?) forma sporangialis (?) . . . . 74 



9. Rhizosolenia sima, n. sp., var. nov. ..... 72 



Figures 10 and 16. Chcetoceros incurvum, Bail., var. umbonatum, nov. . . 80 



Figure 12. Grammatophora stricta, Ehrenb., var. nov. . . . .57 



„ 13. Actinocyclus pellucidus, n. sp. . . . .147 



,, 14. Pleurosigma japonicum, n. sp. .... 38 



