THE 



GEOLOGICAL MAGAZINE. 



No. LIII.— NOVEMBER, 1868. 



I. On a Newly-discoveued Long-eyed Calymene from the 



Wenlock Limestone, Dudley. 



By Henry Woodward, F.G.S., F.Z.S., of the British Museum. 



[PLATE XXL] 



IT is more than a century since the " Dudley Locust," or ' Trilo- 

 bite,' was first figured and described,^ and the locality where it 

 it is found, is rendered famous by the researches and writings of 

 Sedgwick, Phillips, Forbes, Murchison, Salter, Davidson, and a host 

 of other geologists and palasontologists, who have been attracted 

 thither at various times by the grand geological features of the dis- 

 trict or by the matchless beauty and endless diversity of its well- 

 preserved organic remains. 



Nor have the advantages, which this locality offers, been lost sight 

 of by the members of the Dudley and Midland Geological Society, 

 whose well-stored cabinets attest the earnest interest they all take 

 in procuring and preserving the choicest Corals, Mollusca, Crinoids, 

 and Trilobites, which the Wenlock Limestone and Shale so abund- 

 antly afford. 



To one of these gentlemen, Mr. E. Hollier, of Dudley, I am in- 

 debted for the opportunity of examining and describing the remark- 

 able Trilobite which forms the subject of this communication. 



From the time of the establishment of the genus Calymene by 

 Brongniart in 1822,^ the '' Dudley Trilobite " may be said to have 

 been very well known, described, and figured, and its portrait has 

 appeared in almost every geological work in which fossils have been 

 noticed from that time down to the present day. 



For the best description and illustration of this and many other 

 genera of British Trilobites we are indebted to Mr. J. W. Salter. 

 (See Geological Survey, Memoirs, 1849-53 ; and Monographs of the 

 Pala3ontographical Society^ for 1862-66), to Part II. of which latter 

 work we refer the reader for a full description of the genus Calymene. 



1 Lyttelton, Phil. Trans. 1750, vol. xlvi. p. 598, pi. i. and ii. ; Mortimer, ibid. p. 

 600 ; Mendez da Costa, ibid. 1753, vol. xlviii. p. 296 ; also Guettard, Wilckens, 

 Klein, Walch, Beckmann, etc., 1757 to 1773. 



'^ Brongniart and Desmarest, Hist. Nat. Crust, foss. 1, pl.i. 



3 Four parts have already appeared, with upwards of 30 plates and above 700 

 figures, together with descriptions of 114 species of Trilobites. 



VOL. V. — NO. LIII. 32 



