218 Kansas Academy of Science. 



51. Buccinum bogachielii n. s. Plate V, figs. 51a, 6. 



Shell oblong-ovate, thin; whorls convex, somewhat glassy in ap- 

 pearance; surface ornamented with rather fine lines of growth and 

 with two faint spiral ridges on each whorl, separated from each 

 other by about the space of a third of the whorl in longitudinal 

 section, the upper ridge impression on each whorl being at the 

 beginning of the area that forms the slope to the suture; aperture 

 ovate; canal open, short. 



The specimen is from the Quillayute formation. The species is 

 rare. 



Genus Chrysodomus Swainson. 



"Shell fusiform, ventricose; spire elevated; whorls rounded; 

 covered with a horny epidermis; apex papillary; aperture oval; 

 canal short; inner lip simple, smooth." (Arnold). 



52. Chrysodomus giganteus n. s. Plate V, fig. 52; times, one-half. 



Shell very large, broadly fusiform; spire elevated; whorls seven 

 or eight, convex, sharply angulate and keeped above, forming a 

 rimmed, spiral table, below which there ife a rather wide, flattened, 

 second table-leaf-like, declining area, bordered below by a second 

 prominent angular ridge, followed by another depressed area; then 

 low lands alternating with slightly depressed spaces in a revolving 

 manner cover the body of each whorl; surface smooth except for 

 fine, nearly oblique, incremental lines which extend over the table- 

 areas; suture impressed; aperture elliptical-subovate; outer lip 

 thin; inner lip incrusted; canal wide, short, curved backwards; 

 columella twisted, smooth. 



Dimensions: Axial length,?; lat. of body whorl of specimen 

 figured, 71; of the next whorl, 38.5; height of body whorl from 

 mouth of canal, 7-8; of the next whorl, 21. 



Measurements of a medium-sized specimen: Lat. of body whorl, 

 56; of the next whorl, 33; height of body whorl from mouth of 

 canal, 58; height of next whorl, 18; length of aperture, including 

 canal, 53; width at widest part, 31. 



This species is distinguishable from the other Chrysodomus 

 species by its large size, smooth surface and double tabular area. 



Specimen obtained from the Quillayute formation near the 

 mouth of Maxfield creek, Clallam county, Washington. 



53. Chrysodomus stantoni Arnold. Plate V, fig. 53. 

 Chrysodomus stantoni Arnold. Proc. U. S. Nat. Mus., 1908. 



This species resembles G. giganteus above but differs from it 

 in its having a more sloping primary table, nearly obsolete instead 



