230 



WEST COAST SHELLS 



CaUlostonia (jemulatuni^ Cpr., the Gemmed Top- 

 shell, is ot a conical shape, the whorls of the shell be- 

 ing ornamented with spiral strings of granules or 

 beads, each whorl having two principal rows, with 

 several smaller ones. The color of this southern 

 shell is gray, with some dark cross stripes running 

 down from the apex.- Its height is only 15 mm. or 

 less and it is seldom found in large numbers. 



Calliostoma glo- 

 riosufji, Dall, the 

 Glorious Tap-shell, 

 Figure 225, is the 

 name of the hne 

 species which is oc- 

 casionally found on 

 the California coast. 

 The engraving 

 shows no color 

 painting, and as it 

 is so much enlarged 

 the granules appear 

 much too promi- 

 nent. The color of 

 specimens found in 

 Monterey Bay is light salmon, while around the su- 

 tures and the angle of the lower whorl is a chain 

 of roundish dark spots, with the lighter spaces be- 

 tween them. Tn San Pedro Bay the shells are darker. 

 The height ot a grown specimen is fully an inch. 



In the first edition of this book this species was 

 called C. suprcKjranosuni^ Cpr. The latter name, how- 

 ever, proves to belong to a rare species having a much 



Fig. 225. X 5 (*) 



