TORS AND TURBANS. 243 
Calliostoma var- 
iegatum, Cpr., the 
Variegated  Top- 
shell, Figure 271, 
was originally de- 
scribed from a 
very small speci- 
men taken in Puget 
Sound. Of late 
years, however, it 
has been found off 
San Pedro, where 
Fig 271, x $(*) 
specimens reach an altitude of 28mm. The top 
of the growing shell is rose colored, and the rest 
is yellowish white, but as age advances it gradu- 
ally loses its brightness and appears of a yellowish 
pink, with pearly iridescence showing through. 
Fig. 272, x $ (*) 
Calliostoma platinum, 
Dall, the White Top- 
shell, Figure 272. This 
fine species was dredged 
by the ‘‘ Albatross’’ ex- 
pedition from a depth 
of about half a mile of 
water near the Santa 
Barbara Islands. The 
shell is large, very thin, 
polished, and of a whit- 
ish color, tinged with 
green or blue. 
