﻿BIBLIOGRAPHY OF THE MEROSTOMATA. 



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a paper, which he had read in October, 1858, to the Dorpat Naturalists' Society 49 on 

 Eurypterus remipes from the Upper Silurian strata of the Island of Oesel, Baltic. 

 Dr. Nieszkovvski gives restorations of the upper and under sides of Eurypterus ; and in 

 the latter figure he shows the appendages of the mouth in situ, and three thoracic plates 

 for the under side of the body. We think this possibly arises from a misconception of 

 the median appendage, but shall refer to this paper again when treating of the genus 

 Eurypterus. 



44. In a second paper communicated to this society, in October, 1858, Dr. Niesz- 

 kowski 50 describes and figures Bunodes lunula of Eichwald, and a new species, which he 

 names B. rugosus ; also two new genera allied to Ilemiaspis, namely, Exapinurus Schrenkii, 

 and Pseudoniscus aculeatus ; all these are from the Upper Silurian of Rootzikull, Island 

 of Oesel, Baltic. He has likewise figured a metastoma or lip-plate of Pteryyotus, four 

 inches in length and three inches broad, from the same locality. 



Fig 4. Pteryyotus anylicus, Agassiz, restored (1859). 



45. The third (second) edition 51 of Sir R. I. Murchison's 'Siluria' (1859) furnishes 

 us (besides numerous separate notices of the Eurypterida) with a restored figure, by Mr. 

 J. W. Salter, of Pteryyotus anylicus, about one twentieth natural size, giving all the 

 details then known. 



46. Mr. David Page 52 gives us (1859) restorations of Pteryyotus anylicus, Himan- 

 topterus acuminatus, Stylonurus Powriei, Stylonurus spinipes, Eurypterus clavipes, Euryp- 



