BUFFALO SOCIETY OF NATURAL SCIENCES 85 



P. beraunensis 



P. bohemicus 



P. nobilis 



P. cf. problematicus 



Graptolites. 



Monograptus turriculatus 

 Other species 



Upper Lower Siluric (Ee 2 ) Fauna of Bohemia. 



Eurypterids. (All very fragmentary.) 



Pterygotus barrandei 



P. beraunensis 



P. blahai 



P. bohemicus 



P. fissus 



P. kopaninensis 



P. nobilis 



P. cf. problematicus 



Slimonia cf . acuminata 

 Associated fauna. 



The typical and abundant Upper Siluric of Bohemia. 



Wenlock Fauna of Pentland Hills, Scotland. 



Eurypterids. 



Bembicosoma pomphicus 



Drepanopterus bembicoides 



Drepanopterus lobatus 



Drepanopterus pentlandicus 



Eurypterus conicus 



Eurypterus cyclophthalmus 



Eurypterus minor 



Eurypterus scoticus 



Eurypterus, 3 sp. und. 



Slimonia dubia 



Stylonurus elegans 



Stylonurus macrophthalmus 



S. ornatus 

 Scorpion — Palaeophonus loudonensis 



Ceratiocarid — Dictyocaris ramsayi (Taxonomic position doubtful) 

 Sponge — Amphispongia sp. 

 In beds above or below eurypterid layers, the following fauna has been found: 

 Graptolites 



Dictyonema venustum 



D. (Chondrites) verisimile 



Cyrtograptus murchisoni ? 



Monograptus priodon 



M. vomerinus 



