PT.ATK r.. 



Fig. l.—CosHnodlscttR vrvecunffus Mann. Eiilar^i'd 500 diameters. Descriptinn, p. 259, 

 FiKi. 2. — Cyelotdla rctfum Maim. Eiiliirgod 500 diiunt^UTs. DescjIjtUoii, [i. 2ft5, 

 Fig. 3. — Melosiva medusa. Mjtiin. Enliirgod 5(>0 diiimcterN. Deserii>tioii, p. 23M. 

 Fig. i.—Mdosira scopos Muuu. Enlar^^od GOO duuiieters. De.scription, p. 2;i9. 

 Fig. 5. — Sfkioflhcus (/rUdus Mann. Eiilarg:od ()(X) diametors. Dosoription, p, 268. 

 Fig. (y.— Trip<nIifiC((i^ In n'nyent^is Mann. Description, p. 278. 



434 



