PLATE XXXIX. 



Figures magnified 375 diameters. 



Page. 

 Figs. 1, 2. MlCRASTBEIAS BINGENS, two forms, . . . 123 



Fig. 3. MicRASTERiAS Cbux Melitensis, .... 123 



" 4. MiCKASTERIAS PSEnDOFORCATA, . . . 122 



Figs. 5, 6. MicRASTERiAs FURCATA, two forms, . . . 128 



