178 



Bryozoans of the 



Fejjestella (Hemitrypa) conjunctiva, n, sp. 

 Width of branches from .33 to .50 mm., immediately below bifur- 

 cation the width is .75 mm., rounded or subaugular, carinated , below 

 bifurcation flattened, from straight to zig-zag; the dissepiments have 

 a width to .50 mm., fenestrules oval, length .95 mm., width .50 mm. 

 Cell-apertures in two ranges, circular, sixteen in the space of 5 mm.; 

 height of carina .55 mm., summit connected by lateral bars ; bars and 

 summit of carina having precisely the same appearance as the non- 

 celluliferous side of some fronds . both summit and processes carinated. 



Locality — Canada West. 



Fexestella (Hemitrypa) fastigata, n. sp. 

 Width of branches from .33 to .05 mm., angular, carinated ; carina 

 strong; around each fenestrule there is a narrow elevation ; width of 

 dissepiments .-iO mm. Fenestrules oval, length about .50 mm., width 

 .33 mm. Cells in two ranges, apertures comparatively large, opening 

 laterally ; space between the ranges of apertures carinated ; carinse at 

 base very thin, expanding above, height Ao mm.; connected by lateral 

 processes consisting of very thin plates. 



Locality — Falls of the Ohio river. 



