248 PALEOZOIC TIME. 



1. American Clinton and Niagara Species occurring elsewhere. 



Stromatopora concentrica, Great Britain (Dudley), Sweden, Russia, Eifel. 



Halysites catenulata, Great Britain (Llandeilo, Dudley, Aymestry), Norway, Sweden 



Russia, Eifel. 

 Heliolites piriformis, Great Britain (Wenlock, Aymestry), France, Sweden, Russia, 



Eifel. 

 Limaria fruticosa, Great Britain (Dudley, Aymestry), Russia. 

 Limaria clathrata (?), Great Britain (Dudley), Russia. 

 Ichthyocrinus levis Con. ( ?), Great Britain (Dudley). 

 Eucalyptocrinus decomis, Great Britain (Dudley). 

 Orthis elegantula, Great Britain (Wenlock), Gothland (in Sweden). 

 Orthis hybrida Sow., Great Britain. 

 Orthis biloba, Great Britain (Dudley), Gothland. 

 Orthis fiabellulum, Great Britain (Bala.) 

 Leptwna transversalis, Great Britain, Gothland. 

 Strophomena rhomboidalis (formerly Leptoena depressa and St?*oph. rugosa), Great Britain 



(Dudley, Aymestry), Sweden, Russia, Belgium, Eifel, France, Spain. 

 Spirifer crispus Hising., Great Britain (Llandeilo, Dudley), Gothland. 

 Spirifer radiatus, Great Britain (Dudley). 

 Spirifer sulcatus Hising. ( ?), Great Britain (Dudley). 

 Nucleospira pisum, Great Britain (Wenlock and in Scotland). 

 Atrypa reticularis, Great Britain (Wenlock), Gothland, Germany, Russia (Urals, 



Altai).. 

 Merista (Rhynchonella) nitida, Great Britain and Gothland. 

 Rhynchonella bidentata, Great Britain (Wenlock). 

 Rhynchonella cuneata, Great Britain (Wenlock), Gothland. 

 Rhynchonella plicatella Dalm., Great Britain (Wenlock, Aymestry). 

 Rhynchonella Wilsoni, Great Britain (Wenlock). 

 Rhynchospira? (Atrypa) aprinis, Russia. 

 Pentamerus brevirostris H., Great Britain. 

 Pentamerus oblongm, Great Britain (Wenlock). 



Pentamerus levis, Great Britain (Wenlock). — P. Knightii, Great Britain (Ludlow). 

 Anastrophia interplicata, Great Britain. 

 Orthoceras impUcatum, Great Britain (Ludlow), Gothland. 

 Orthoceras annulatum, Great Britain (Wenlock). 

 Orthoceras virgatum, Great Britain. 

 Orthoceras undulatum, Great Britain, Eifel. 

 Illcenus- (Bu?nnstis) Barriensis, Great Britain (Dudley). 

 Phacops limulurus (?), Great Britain (Dudley), Bohemia, Sweden. 

 Ceraurus insignis, Bohemia. 

 Calymene Blumenbachii, Great Britain (Bala, Wenlock), Sweden, Norway, Bohemia, 



France. 

 Homalonotus delphinocephalus, Great Britain (Dudley). 

 Proetus Stokesii Murch., Great Britain (Dudley). 



2. American Lower Helderberg Species occurring elsewhere. 



Strophomena rugosa, Great Britain (Dudley, Aymestry), Gothland, Russia, Eifel, 



France, Spain. 

 Atrypa reticularis, Great Britain (Wenlock), Sweden, Russia (Urals, Altai), Bohemia. 

 Dalmanites nasuta, Great Britain, Sweden, Russia. 

 Eurypterus remipes, Russia (island of Oesel, according to Keyserling). 

 Pentamerus galeatus, Great Britain (Aymestry, Dudley, Ludlow), Eifel. 



There are a number of other species closely like European, but they are regarded 

 by Hall as distinct. 



