30 CANADIAN FOSSILS. 



E ? PAGODA, N. sp. 



Plate VI$. Figure 5. 



E. turrita, elongatissima, anfractibus 10—11 depressis tricarinalis ; carind 

 super iori remotd minima, suturam profundam approximatd ; mediand 

 inferiorique fere cequalibus, eminentibus : cunctis crenulatis, striis 

 obscuris (retrorsis?). 



A much elongated, turrited shell, of about ten or eleven very convex 

 beaded whorls, very gradually increasing in size, and furnished each 

 with two prominent keels, besides a smaller one along the sutural 

 edge. Of the principal keels the upper is rather the more prominent, 

 and placed about the middle of the whorls in the spire, but above it 

 on the body-whorl. The space above it is a regular slope, between 

 it and the third keel concave, and below the third also concave for a 

 somewhat greater space as far as a fourth, which only shews on the 

 base of the body-whorl, being covered by the suture in the spire 

 Mouth, unknown. 



The keels are all more or less crenulated, evidently by the lines of 

 growth, but these are so obscure that it is impossible to say whether 

 they are oblique backwards, as in Eunema, or arched forward, as in 

 true Loxonema. The species might be referred to either of the two 

 genera, but as yet we know of i\o Loxonema with strong spiral keels, 

 while they are characteristic of Eunema; it is therefore safest to leave 

 it in the present genus, especially as there are other smaller species 

 not described here, of quite as elongate a form, in which the course 

 of the lines of growth is not doubtful. 



Locality. — Frequent on slabs of limestone, in company with many 

 of the foregoing species, at Pauquette's Rapids. Another new spe- 

 cies resembles a small Cerithium, and might be termed E. cerithioides. 



Loxonema, Phillips. 



The species of this genus are but rare in Lower Silurian rocks. 

 One is introduced here to compare with the most extreme forms of 

 Eunema. The inner lip is still more incomplete, and the curve of 

 the striae more sigmoidal. 



