R. ETHEBIDGE, JUN., ON A LOWER-CARBONIFEROUS CRUSTACEAN. 223 



14. On the Remains of a large Crustacean, probably indicative of a 

 new Species of Eurypterus, or allied Genus (Eurypterus? 

 Steyensoni), from the Lower Carboniferous Series (Cement- 

 stone Group) of Berwickshire. By Robert Etheridge, Jun., 

 Esq., F.G.S., of the Geological Survey of Scotland. (Read 

 December 20, 1876.) 



1. Introduction. — Of the genus Eurypterus, so largely represented 

 in the Upper Silurian rocks of* Great Britain, and much more sparingly 

 in the Old Red Sandstone, we have but a single Carboniferous 

 species, Eurypterus Scouleri, Hibbert, from a freshwater limestone 

 of the Lower Carboniferous Limestone series at Kirkton, near Bath- 

 gate, Linlithgowshire. The bibliography of this species is not 

 heavy. We have first Dr. Scouler's original description under the 

 name of Eidoihea *, next the memoir of Dr. Hibbert t wherein 

 the specific name is suggested, then a notice by the late Mr. J. W. 

 Salter X, and lastly Mr. H. Woodward's more detailed description 

 and magnificent figures §. 



Last year Mr. W. Stevenson, of Dunse, presented to the col- 

 lection of the Geological Survey of Scotland three fragmentary 

 specimens of great interest, which he had collected at Kimmer- 

 ghame quarry, near Dunse. I at once saw, as had previously 

 been surmised by Mr. Stevenson, that these specimens were, in all 

 probability, jDortions of a very large Eurypterus, of far larger 

 size than E. Scouleri, Hibbert. A rough drawing of one of the 

 fragments was sent to my friend Mr. H. Woodward, F.R.S., who, 

 so far as he was able to form an opinion from the drawing, con- 

 firmed my view. Since Mr. Stevenson presented his specimens to 

 the Survey Collection, one of the fossil-collectors of the Scotch 

 branch of the Geological Survey (Mr. A. Macconochie) has visited 

 Kimmerghame quarry in the course of his duties, and succeeded in 

 obtaining five more specimens, similar, speaking generally, to those 

 found by Mr. Stevenson. I have this year been favoured by Mr. 

 Smith of Preston Farm, near Dunse (through Mr. Macconochie), 

 with two additional fragmentary specimens from the same locality, 

 both very interesting, but one more particularly so, as it appears 

 to represent a considerable portion of a body-segment. Lastly, 

 we are again indebted to Mr. Stevenson for six further specimens 

 which have only lately come to hand; they represent portions, I 

 believe, of body-segments. Irrespective of counterparts, Messrs. 

 Stevenson, Smith, and Macconochie, have thus obtained from the 

 Dunse neighbourhood no less than thirteen specimens, which, 

 although fragmentary, and differing a little in size amongst them- 



* Edinb. Journ. of Nat. and Geograph. Sc. 1831, p. 352, pi. 10. 



t Trans. Eoyal Soc. Edinb. 1836, xiii. p. 280, pi. 12. 



X Quart. Journ. Geol. Soc. 1863, xix. p. 82. 



§ Mon. Brit, Foss. Crustacea, Pal. Soc. pt. 4, 1872, p. 133, pis. 25-27, 



