CATARACT FAUNA 283 



o*Rhinopora verrucosa Hall (syn. R. venosa Spencer). Originals from 

 Flamborough Head. Widely distributed throughout the Manitoulin 

 and lower Cabots Head member, and one of the guides. 



*Phcenopora explanata Hall. Originals from Flamborough Head, in Cab- 

 ots Head member. 



-{-Phcenopora constellata Hall. This Clinton species is identified by 

 Nickles and Bassler at Hamilton. 



b*Ph(jBnopora ensiformis Hall. Originals from Flamborough Head, in 

 Cabots Head member. 



*Phcenopora punctata (Nicholson and Hinde). Originals from Dundas 

 as Ptilodictya punctata; probably lower Cabots Head member. 



h+Pachydictya crassa (Hall). Originals from the Clinton of New York 

 as 8tictopora crassa; also identified at Flamborough Head. Cabots 

 Head and Manitoulin members. 



-i-Nematopora raripora (Hall). Originals from Flamborough Head as 

 Stictopora raripora; probably from lower Cabots Head member; also 

 in Rochester of New York. 



h-{-Phylloporina angulata (Hall). Originals from the Clinton of New 

 York as Retepora angulata. Not rare in Manitoulin member. 



XFenestella Mcornis Spencer. Originals from Hamilton. Species not as 

 yet recognizable. 



-\-Fenestella tenuis Hall. This Clinton form Nicholson identifies doubt- 

 fully at Dundas. Manitoulin member. 



XFenestella prisca Lonsdale. Hall has this form from Flamborough 

 Head. What he had can not be stated, but probably not Semicoscin- 

 ium tenuiceps (Hall). 



h*Callopora magnopora Foerste. This Brassfield species of Ohio, Bassler 

 and Parks identify from the Cataract. Of wide distribution near top 

 of Cabots Head member. 



h*Homotrypa (?) confluens (Foerste). Another Brassfield form of Ohio; 

 also common in Cataract, in upper Cabots Head member. 



h-\-Clathropora frondosa Hall. This Rochester form is identified by Parks 

 at Hamilton, in Cabots Head member. 

 Brachiopoda : 



*Lingula lingulata Hall and Clarke. Original from Cabots Head member 

 at Hamilton. 



•\-IAngula cfintoni Vanuxem. This Clinton species also occurs near top 

 of Cabots Head member. 



-\-Lingula odlata Hall. Parks identifies this Clinton species from Cabots 

 Head member at Hamilton. 



h-\-Dalmanella elegantula (Dalman). Of wide distribution in Manitoulin 

 and Cabots Head members. 



h+Rhipidomella hydrida (Sowerby). Of wide distribution in Manitoulin 

 member. 



-\-RMpidomella circulus (Hall). This Clinton species also occurs in Mani- 

 toulin and lower Cabots Head members and is of wide distribution. 



\)-\-Ort'his flahellites Foerste. This widely distributed Siluric form is also 

 common in the Manitoulin and lower Cabots Head members. Identi- 

 fied by Nicholson as O. calUgramma davidsoni. 



