Raymond : Gastropoda of the Chazy Formation. 211 



A single fragmentary specimen from the " Trilobite layers " in Sloop 

 Bay represents a very elongate, conical species of Subulites of the 

 type of Subulites elongatus Hall, but about the size and shape indicated 

 by the fragments of Subulites pergraeilis Ulrich. and Scofield, illustrated 

 in the "Paleontology of Minnesota," Volume III, part 2, Plate 81. 

 The whorls are, however, longer in our species than in Subulites per- 

 gracilis and the shell is even slenderer in proportion to the height. 



Description. 



Shell small, elongate, fusiform, with about six (?) whorls (one 

 specimen shows body whorl and three above) . The whorls are long 

 and narrow, decreasing slowly and regularly toward the apex. The 

 body whorl is about equal to the length of the two whorls above it, 

 and is contracted below. The aperture is not shown. The height of 

 the fragment is 29 mm. Probably the total height was about 35 mm. 



Locality. — From the Middle Chazy at Sloop Bay, Valcour Island, 

 New York. 



The type is in the collection of the Yale University Museum. 



Genus Cyrtospira Ulrich and Scofield. 



Cyrtospira raymondi (Hudson). 

 (Plate LIV, figures 14, 15.) 



Subulites raymondi Hudson, 1905, Annual Report of New York State 



Paleontologist for 1903, p. 293, PL 4, figs. 1, 2. 



This little shell which Hudson described from specimens obtained 

 at Valcour Island occurs also in McCullough's sugar bush at Chazy in 

 the layers with Sphazrocoryphe goodnovi. 



Ulrich and Scofield' s genus Cyrtospira, which was proposed for 

 species near Subulites but differing in the short curved form and large 

 aperture seems well founded, and the present species falls within the 

 limits of that genus. In its double curvature it resembles Cyrtospira 

 bicurvata Ulrich and Scofield from the Stones River group, but the 

 spire of the species from the Chazy is higher. 



Hudson's Description. 



"Shell small, fusiform; apical angle about 44 , length of speci- 

 men, with apical whorl, or a little more, lost, 9.5 mm. Greatest 

 thickness across axis at middle of shell 3.4 mm. Whorls five or six ; 



