FACTS AND OBSERVATIONS. 



XXIX 



Five Orthoceratites (0. capillosum, loricatum, originals, pseudo-calamiteum, rigescens) permeate 

 almost the whole succession of the upper strata of Bohemia. 



The Bohemian Orthoceras annulatum is in the State of New York and Britain, and the Bohe- 

 mian 0. bullatum is in West Canada and Australia, facts which once would not have been believed ; 

 but geological zoology not only deepens into the past, but widens unto the uttermost parts of the 

 earth. 



The 302 species of Cyrtoceratites never leave their native stage, and only ascend eleven times 

 into the next subdivision of that stage. Other genera of Cephalopoda crowd these same parishes in 

 abundance, Cyrtoceras in particular; but we have not space for further details. 



We are opening out a condition of things in this well- worked basin which is utterly irreconci- 

 leable with the hypothesis of natural selection. 



We now pass on to make some brief remarks on the zoological relations of the Bohemian 

 basin with some other parts of the earth. 



It remains for the present a singular fact that these relations are by much the closest with the 

 Silurian districts in the extreme west and north-east of Europe, at a distance of 800 to 1200 miles. 

 We speak of Ireland, Great Britain, France, Spain, Russia, &c. These countries have 207 species 

 in common with Bohemia, and in the following proportions : 



England . 81 



Wales 66 



Scotland ........... 32 



Ireland 47 



France 48 



Spain (little examined) 25 



Baltic Russia 32 



Russia 28 



Sweden 47 



Norway 35 



The Harz 41 



The above little list tells its own story ; but a still closer insight into the relations of these 

 countries is afforded by the subjoined Table. 



TABLE P. 



The appearances enumerated in this Table are 491 against 207 species, showing that the same 

 species is used to people several regions. Instances will be given hereafter of the same species 

 inhabiting thirty or more countries. 



