PLATE XXXVII. 



Figures magnified 375 diameters. 



PAGE. 



Fig. 1. MICBASTEBIAS .1 KNNKRI. . ... .127 



" 2. " " Var. angulosa, ... 127 



Figs. 3, 4. MICBASTEBIAS OSCITANS, two semi-cells, varying mainly in the 



apices of the polar lobes ; in the one 

 simple, in the other divided, . .128 



" 5, 6. MICBASTEBIAS DECEMDENTATA, a large form, two sizes, . 126 



" 7, 8. MICBASTEBIAS CBENATA, two forms, . . . .126 



