368 PALAEONTOLOGY OF ILLINOIS. 



PROBOSCINA Audouin. Like the preceeding, but with the cells 

 in two or more series, and the apertures slightly constricted. 



Type: ? Range, Cincinnati to Recent. 



BERENICEA Lamx. (SageneUa Hall). Zoaria forming delicate 

 incrustations upon foreign bodies; sometimes consisting of sev- 

 eral superimposed layers. Zooecia as in the preceding. 



Type: B. diluviana Lamx. Range, Trenton to Recent, but 

 not as yet known from Devonian and Carboniferous strata. The 

 same is true of Stomatopora and Proboscina. 



Clonopora, Cystopora, Hederella, Ptilionella* and JHernodm, 

 are genera lately proposed by Prof. Hall. Judging from his 

 brief descriptions only, it seems probable that they refer to 

 Bryozoa having affinities with the TUBULIFORILLE. All are from 

 Devonian deposits. 



Family FRONDIPORIDTE Reuss. 



SCENELLOPORA Ulrich. Zoaria broad-obconical, the under side 

 with an epitheca, the upper slightly concave and celluliferous. 

 Zooecia with subcircular apertures, occupying the summits of 

 radiating ridges. Intermediate spaces smooth, without cells. 



Type: S. radiata Ulr. Range, Trenton. 



Family PHACELOPORID^E n. fam. 



Zoaria segmented; the zooecia conical, combined in bundles 

 of two or more to form conical segments. 



PHACELOPORA n. gen. Zoarium articulated; segments short, 

 conical, consisting of two or more equal, conical zooecia, with 

 slightly contracted circular apertures. 



Type: P. pertenuis Ulr. Range, Trenton to Cincinnati. 



Family ENTALOPHORIDJS Reuss. 



DIPLOCLEMA n. gen. Zoaria ramose, ovate in cross section. 

 Zooecia tubular, long, apparently moniliform proximally, separ- 

 ated internally by an axial lamina from which they gradually 

 diverge to open up on the two sides of the compressed branches. 

 Apertures prominent, isolated, somewhat constricted and cir- 

 cular. External wall thin. 



"This genus is the same as Reptaria proposed Rolle in 1851. (See Pal. N. Y. Vol. 6.) 



