226 Kansas Academy of Science, 



Family Aporrhaid^; Genus Aporrhais Dillwyn. 



Shell fusiform, turreted or oblong-ovate, with a short canal in 

 front and a posterior canal running up the spire; outer lip of adult 

 shells expanded and two or three digitated, digitations forming 

 carinse on the back of the shell. 



Subgenus Arrhoges Gabb. 



"Shell with expanded lip, merely terminating in a single pos- 

 terior obtuse, lobe-like extension, and having its anterior sinus 

 nearly or quite obsolete; posterior canal very short; anterior canal 

 also short and obtuse. "^'^ 



65. Aporrhais (Aporrhoges) quillayutensis n. s. Plate VI, fig. 65. 



Volutions five or more, convex; suture distinct; body whorl 

 large, thick; lip expanded, terminating in a single posterior large^ 

 lobe-like extension; anterior sinus nearly obsolete; posterior canal 

 very short; anterior canal short and obtuse; surface sculpture un- 

 known (a few fragments of the shell on the cast seem to indicate 

 that it was smooth); inside of outer lip ridged, the ridges radiating 

 outward. 



Dimensions: Axial length, more than 60; breadth of body volu- 

 tion, including lip, 45; extension of lip, 21, 



A single specimen was obtained from the Quillayute formation 

 at the mouth of Maxfield creek. 



This species differs from all previously known Aporrhais in its 

 large size. 



PLEISTOCENE STRATIGRAPHICAL SECTIONS. 



1. Section taken at Port Townsend: 



1. Blue clay 10 feet +. 



2. Plaster sand 30 " 



3. Yellow and containing cobblestones 4 " 



4. Black soil 2 " 



In 2 and 3 large glacial boulders are embedded. 

 This is the only section taken on the strait; those which follow 

 are from the Pacific side. 



2. A section in a well on the Pool place on Quillayute prairie 

 taken from the surface down: 



1. Black loam 3 feet. 



2. Yellow and blue clay 20 " 



8. Gravel 67 " 



No water was found in this well. The Quillayute prairie lies on 

 a bench, and its greatest drawback is its lack of water. 



65. Meek. U. S. G. S. Terr., vol. IX. p. 321. 



