384 
PALAEONTOLOGY OF NEW-YORK. 
In 1854, Eichwald ( Bulletin de la Soc. Imp. des Naturalistes de Mo- 
scou, No. 1, pa. 100, pi. 1), published a series of illustrations of the E. 
tetragonophthalmus of Fischer, from the Island of CEsel, erroneously re¬ 
ferring it to the E. remipes of Dekay. 
Pictet ( Traite de Palaeontologie, 1854), has copied the figure of Dr. 
Rcemer, referring it erroneously to E. remipes of Dekay. 
In 1855, M‘Coy (British Pakeozoic Fossils of the Cambridge Museum, 
pa. 175, pi. 1 e, f. 1), described and figured the carapace of a species of 
Eurypterus under the name E. cephalaspis, the Homalonotus cephalaspis of 
Salter. 
The Lepidoderma imhoji ( Reuss, Denkschriften Akad. Wiss. Wien, Yol. 
x, pa. 81, pi. 3, 1855), is undoubtedly a species of Eurypterus , approaching 
in character to E. lacustris. 
In 1856, Notice of the occurrence of Eurypterus in the rocks of Le- 
smahago, by Sir R. I. Murchison (Quarterly Journal of the Geological 
Society, Yol. xii, pp. 23 & 24) : Lesmahago silurianus, Murchison. 
Mr. Salter, in his paper on some new Crustacea from the uppermost 
Silurian rocks (Quarterly Journal of the Geological Society, 1856, Yol. 
xii, pp. 26 & 27), refers to the Genus Eurypterus. The figures 4 and 5 on 
page 28, referred to Himantopteris acuminatus and H. lanceolatus, bear all 
the characteristics of similar parts of the body of Eurypterus. See also a 
note following this paper, on the structure and affinities of Himantopterus, 
by T. H. Huxley. 
In 1858-59, Mr. Salter (Quarterly Journal of the Geological Society, 
Yol. xv, Part 2, pa. 229, pi. 10), gives a notice of the genus and the 
previously described species, and adds six new species to the list before 
known*. 
* See Summary at the end of Descriptions. Mr. Salter has fallen into an error in referring the E. remi¬ 
pes and E. lacustris to the same locality, viz. Williamsville, Erie county, N.Y. (loc. cit. pp. 230 & 235). 
The E. remipes occurs in Central New-York, near the village of Waterville in the town of Westmoreland, 
Oneida county, and in the neighborhood of that place. The E. lacustris occurs in the same geological 
horizon near Williamsville and other localities east of Buffalo in Erie county, New-Y r ork. 
