Pi-ATK \\\: l''i(,>. _'73 lo 2y^}\ .M.\(;.\ iiikd 500 I)iAMi:ri:KS. 



I*"ii;'. 2~^. Styhniychia unit II is Miill p. 60 



Figs. 274 to 2j/ are dittcrcnl forms of I 'orticclla . ...]). 63 



F"io-. 278. RJialniostyla brcvipcs i 'f) (". & L p. 64 



Fig-. 2y(). Ar:^' ;^t////.v p. 58 



Fig. 280. . Isf'idisca s]). (?) p. 61 



Fig. 281. . Is'l^ldisca cosUita I )uj p. 01 



