Geological Papers. 221 



57. Purpura crispata Chemnitz. Plate VI, fig. 57. 



Purpura crispata Chemnitz, Conch. Cab. , XI, pi. 187, figs. 1802 and 1803, 

 1795. Kuster, Conch. Cab., p. 105, pi. XIX, figs. 3 and 4, 1837. Carpenter, 

 Brit. Assn. Kept., 1863, p. 662. Tryon, Man. Conch., vol. II, p. 175. pi. 

 LXIII, figs. 163-166, 68, 1880. Cooper, 7th Ann. Rept. Cal. St. Min., 

 1888, p. 261. Keep, West Coast Shells, p. 33, fig. 13, 1892. ''2 Arnold, 

 Mem. Cal. Acad. Sci., vol. Ill, p. 261, 1903. 



The specimen here figured and described is much broken and 

 belongs to the variable class of this species. 



Shell fusiform; spire much elevated; apex subacute; whorls 

 five to seven, angulated with two prominent spiral ridges (now 

 much worn) on each whorl with a flattened band- like space be- 

 tween them; suture impressed, distinct. 



Dimensions: Length without canal, 23; lat. of body whorl, 17. 



Only a single specimen was obtained from the Pliocene of the 

 (^uillayute formation. 



Living: Sitka to Santa Barbara (Cooper); Neah Bay, Quilla- 

 yote Bay, Washington ( Reagan) . 



Pleistocene: San Pedro, Cal. (Arnold); San Diego to Santa 

 Barbara (Cooper). 



Pliocene: Quinaielt river, near Granville (Tahola), Wash.; San 

 Pedro, Cal. (Arnold); Seven Mile Beach, San Mateo county, Cali- 

 fornia (Cooper) ; Quillayute, Clallam county, Washington (Reagan). 

 58. Purpura lapillus Lam. Plate VI, fig. 58. 



Specimen obtained is much weathered. Shell fusiform, of 

 medium thickness; spire elevated; apex subacute; whorls six, 

 convex; suture impressed; aperture oval-elliptical; inner lip and 

 columella flattened; canal short; umbilicus slightly perforate to 

 non-perf orate; surface sculpture wholly removed, except transverse 

 growth lines. 



Dimensions: Lat., 16.5; axial length, 31. 



Specimen from the Quillayute formation. 



Living: Quillayute Bay and Puget Sound (Reagan). 



Pliocene: Quillayute, Wash. (Reagan). 



59. Purpura lapillus, var. quillayutea, n. var. Plate VI, figs. 59a, b. 

 Shell with elevated spire, extended beak, rounded volutions; 

 volutions numbering five or six, with strongly marked suture lines, 

 their full, rounded, ventricose forms relieving the sutures; aper- 

 ture large, semilunar in outline, terminating in a narrow canal be- 

 low; outer lip thick; inner lip incrusted; canal a little recurved: 

 surface sculpture mostly removed, except very fine oblique lines of 

 growth parallel to the apertural margin. 



52. After Arnold, loc. cit. 



