﻿BIBLIOGRAPHY OF THE MEROSTOMATA. 29 



judgment in assigning them to the antennae or antennnles ; and they supported my own 

 view, too, as to the existence of three pairs of appendages to the head, exclusive of the 

 chelae and the large swimming-feet, which are also, as we learn from the new and more 

 perfect specimens found, both in America and Russia, included with the appendages of 

 the mouth. 



'• The chief new points, I take it, in Prof. Hall's beautiful series are, first, the larger 

 number of joints in the great maxillary appendages than was supposed from analogy with 

 Pieryyotus, where there are certainly only seven; and, secondly, the existence of ocelli on 

 the dorsal surface of the shield, such as give it a wonderfully Limuloid aspect. But some 

 of the Copepoda have similar ocelli ; and as to the affinities, it would be out of place in 

 every way to give my opinions when the naturalist is by who first truly studied these 

 relations. Whatever corrections better specimens may have led to, the main credit is due 

 to him who from fragmentary materials constructed a true hypothesis." 



Mr. Salter describes 37 E. pulicaris from the Devonian of St. John's, New Brunswick; 

 a fragment of a species allied to E. Scouleri, from the Coal-measures, Port Hoocl, 

 Cape Breton ; part of the telson of a Eurypterus (?) from Coal-measures, Nova Scotia. 



He also gives 57 a fresh description (without a figure) of E. Scouleri, Hibbert, and 

 figures and describes E. (Arthropleura ?) mammatus and E. (Arthropleura) ferox, the 

 first from Kirkton, Bathgate ; the second from Pendleton Colliery, near Manchester ; the 

 third from the (Penny-stone ?) Ironstone, Coal-measures, North Staffordshire. 



52. 1863. Mr. W. H. Baily 58 gives a more complete account of the new Limuli 

 from the Irish Coal-measures, and good figures of Belinurus reyina and B. arcuatus. 



53. In November, 1S63, 59 a notice appeared by the author, with figures, of Slimonia 

 (Pieryyotus) acuminata, in which he showed the propriety of placing this species in a dis- 

 tinct genus (as proposed by Mr. David Page), and pointed out many important characters 

 by which it is at once separable from Pieryyotus. 



54. In 1864 the author described and figured 60 Eurypterus lanceolatus, Salter, from 

 Lanarkshire, only imperfectly known before. 



55. In the same year he exhibited specimens and restored figures of Stylonurus, Piery- 

 yotus, Slimonia, Eurypterus, and Ilen/iaspis, before the British Association, fo Bath ; and 

 in November he published 61 descriptions and figures of Stylonurus Loyani, Styl. ensiformis, 

 Eurypterus Brewsteri, and Pieryyotus minor, and likewise gave a list of all the then 

 known British species, with localities. 61 



56. In 1865 Sir Charles Lyell 64 published an amended figure of Pieryyotus 

 Anylicus, to supersede that which had been designed by Prof. M'Coy. 



57. In November of the same year the Geological Society 65 published the author's 

 descriptions of Stylonurus Scoticus and Stylonurus Powriei from the Devonian of Forfar- 

 shire, and Hemiaspis limuloides from the Lower Ludlow Rock, Leintwardine. 



