GEOLOGICAL AND GBOGBAPHICAL DI8TBIBTJTION. 139 



(ii) Chemung Group. (Fide Shumard.) 

 Nucleoblastidse. 



Scliizoblastus'.' Missouxiensis, Shumard, sp. 



Genus undetermined : — 



[Granatocrinus] Roemeri, Shumard. 



GREAT BRITAIN. 



A. Middle Devonian. 



Plymouth Limestone. 

 Pentremitidse. 



*Pentremitidea ? Whidborneij E. § C. 



Torbay Limestone. 



Troostoblastidte. 



*Mctablastus, sp. 



B. Upper Devonian. 



Pilton Group. 



Genus undetermined : — 



[Pentremites] oralis, Phillips (non Goldfuss). 



GERMANY. 

 Middle Devonian. 



Givetien. 



Pentremitidse. 



Pentremitidea acutangula, Schultze, sp. 



*Pentremitidca clavata, Schultze, sp. 



*Pentreuiitidea Eifelensis, Rocmer, sp. 



*Pentremitidea Roeuieri, E. fy C. 



*Pentremitidea similis, E. 8f C. 



Genus undetermined : — 



[Pentatrcmatitcs] gracilis ', Steininger. 

 [Pentatrematites] plana 2 , G. if F. Sandberyer. 



BELGIUM. 

 Lower Devonian. 



Schistes de Bure. (Transition-beds between the Rhenan and the Eifelien.) 



Pentremitidse. 



*Pentrernitidea Fraiponti, Dewalque, sp. 



1 Possibly identical with Pentremitidea Eifelensis. 



2 This species occurs in Nassau, while the others arc all from the Eifel district. 



T2 



