NICKI.ES AND UASiSLEK.] 



GEOLOGIC DISTKIBUTION. 



93 



Lisle of species — Continued. 

 DEVONIAN— Continued. 



Cystodictya tumulosa ( Hall ) 



verinicnla (Hall) , 



Cystojwra geniculata ?Iall , 



I )ekayia ? devonica ririch 



Dichotrypa foliata Ulrich 



Discotrypa ? devonica Ulrich 



Eridopora ? cli vulata ( Hall ) 



denticulata (Hall) 



Eridotrypa appressa (Ulrich) , 



?obliqua (Ulrich) 



Euspilopora ? barrisi Ulrich 



lobata (Hall and Simpson). 



palmipes ( Hall ) 



serrata Ulrich 



Favicella inclusa ( Hall) 



tessellata (Hall and Simpson). 

 Fenestella fequalis Hall 



angustata Hall 



arkonensis Whiteaves 



assita Hall 



biseriata Hall 



clathrata Hall and Simpson.. 



cultrata Hall 



curvata Hall 



curvijunctura Hall 



depressa Hall 



dilata Prout 



dispanda Hall 



emaciata Hall 



? erectipora Hall 



eximia Winchell 



filitexta Winchell 



magnifica Nicholson 



marcida Hall 



marginalis Nicholson 



? nexilis Hall 



nicholsoni Whiteaves 



nodosa Prout 



parallela Hall 



Oriskaiiv 



tTppcr 

 Hold. 



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Hniuil 

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