Notice of Orthoceras anmddris afid striata, 233 



corresponding precisely, in size and outline, to the large spe- 

 cies found in this neighbourhood. 



Mr. Miller also states, that, at Ledbury, the upper and 

 lower portions of the A'saphus caudatus are abundant, though 

 seldom in a perfect state. The Calymene Tristan? is occa- 

 sionally found there ; but the Calymene Blumenbach//, so 

 plentiful at Dudley, has not yet been discovered. 



The Orthoceras also occurs there, though not sufficiently 

 perfect to exhibit the external shell. It would be a satisfac- 

 tory circumstance to persons interested in geology, to know if 

 the orthoceratites, and large trilobite discovered at Ledbury, 

 are found in lower beds to those which contain fossils of the 

 Dudley character. 



I remain. Sir, &c. 

 General Hospital, Birmingham, Frederick Jukes. 



March 3, 1829, 



The specimens with elevated rings {Jg. 67.) are of one spe- 

 cies, Orthoceras annularis ikf/w. Con.t. 133.; the others (Jig. 68.), 

 found in Colebrook Dale also, are the Orthoceras striata o^ Mi- 

 neral Conchologi/, tab. 58., a species that is found in the Black 

 Rock near Cork, and in the low beds of limestone near Pres- 

 ton, Kendal, and other parts of the transition series ; in none 

 of which, however, as far as I know, has the Barr trilobite 

 been discovered. Many fossil shells are found with it in all 

 these places, but, according to Mr. Jukes, not at Barr ; a 

 distinction which appears extraordinary, and requires to be 

 verified by a diligent search. 



The figure in Min. Conch, of O. annularis is taken from a 

 specimen by no means so strongly marked as one sent by Mr. 

 Jukes ; but another approaches very near to it, and proves 

 them to be only varieties. 



March 10. 1829. J. D. C. S. 



Vol. n. — No. S. 



