520 Repoet of the State Geologist. 



RECAPITULATION OF FAMILY FENESTELLIDiE 



Branches connected hy dissepiments : 



InFUNDIBX] LIFOBM. 



Cells in two ranges, separated by carinae 



or row of nodes Fenestella. 



Cell apertures in two or three ranges, 



branches carinated or not Polyporella. 



Cell apertures in three or more ranges, no 



carina Poltpoea. 



Cell apertures .in four ranges, median 



carina , Fenestkalia. 



Cell apertures in two ranges, carina promi- 

 nent, poriferous ; reverse face poriferous Fenestrapora. 



Cell apertures in two ranges ; carinae with 



prominent, semicircular projections . . . Cycloporina. 



Cell apertures in two ranges; carinsD 

 prominent, connected by scalae, which 

 meet midway, forming pseudo-carinae . . Hemitrtpa. 



Cell apertures in two ranges; carinae 

 prominent, connected by oblique, thin 

 plates Unitrypa . 



Cell apertures in two ranges ; carinee 

 connected by bars ; reverse face porifer- 

 ous ISOTRYPA. 



Cell apertures in two ranges; carinae 

 connected by bars ; reverse face non- 

 poriferous Tecttjliporella. 



Cell apertures in two ranges ; branches 

 and dissepiments carinated ; carinae very 

 prominent, expanded at summit, and 

 coalescing , Tectijlipoea. 



Cells arranged in oval order, around 

 fenestrules ; branches and dissepiments 

 carinated ; carinae prominent, expanded 

 at summit, and coalescing Loculip )RA. 



Cells in (?) two ranges; dissepiments cel- 

 luliferous Phyllopora. 



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