Geneea of the North American Palaeozoic Bryozoa. 565 



This genus may be distinguished from Ceramopora by the 

 numerous mesopores. 



132 



Fio. 130. Ceramoporelladistincta. Surf ace xl8. 



Fig. 131. C. interjjorasa. xl8. 



Fig. 132. C.inclKsa. Surface x9 and xl8. 



CfliLOPORELiA, Ulrich. 

 (Jour. Gin. Soc. Nat. Hist., Yol. Y, p. 157. 1882.)- 

 Type, Chiloporella flahellata^ Ulrich. 



Original diagnosis. " Zoaria rising up into flabellate fronds 

 from a greatly expanded heavy crust ; cell tubes long, very thin- 

 walled ; large and of irregular shape in the axial region ; walls 

 much thickened near the surface ; apertures ovate ; the lunarium 

 conspicuously elevated ; mesopores numerous ; diaphragms few, 

 generally absent." 



(?) Synonym for Fistulipora. 



