﻿io Bulletin 18 36 



The second fossil bed in this section was in chert, a small por- 

 tion of which contained a large number of gasteropods. These 

 specimens were kindly loaned by Mr. C. H. Flory, of Columbus, 

 Ohio, who collected them in 1809, A search in the same ledge 

 failed to bring any other specimens to light. The species are as 

 follows : 



Turbo dilucula (?) cr. Tryblidium patulum r. 



Holopea (?) voluta r. Holopea (?) raymonda cr. 



Descriptions and Distribution of Species. 



In the identification of the specimens described in the paper on 

 the " Calciferous of the Mohawk Valley"* the writer was 

 obliged to depend upon the illustrations as given in Billing's 

 Palaeozoic Fossils, Hall's Paleontology of N. Y. Vol. I, 1847, 

 and the Am. Mus. Nat. Hist. Bull. Vols. I and II. The illus- 

 trations in the first two references are poor and the descriptions 

 very brief ; in consequence one of the species described as a new 

 species was, on comparison with the type specimen, found to 

 belong to a described species. Of this, correction will be made 

 in the following discussion. 



Crustacea. 



TRILOBITA. 



Bathyurus (?) levis sp. nov. PI. 3, figs. 1, 2. 



Bathyurus {?) sp. Am. Pal., Vol. 3, Bull. 13, 1900, p. 17, pi. 16, fig. 9. 



Glabella oblong, very convex, eyes midway between the front 

 and back. Surface smooth. In the most perfect specimen a 

 portion of the fixed cheek curves obliquely downward back of 

 the eyes. Free cheeks and thorax unknown. In the specimen 

 figured (pi. 3, figs. 1, 2,) a structure which has the appearance 

 of an "ocellus" (o) is seen. It is situated in the middle of the 

 glabella directly between the eyes. In Prof. C. E. Beechsr'sf 

 paper on the ' ' Structure and Appendages of Trinucleus ' ' he 



* Am. Pal. Vol. 3, Bull. 13, 1900. 



f Am. Jour. Sci., 3rd Ser., April, 1895, p. 309. 



