TOPS AND TURBANS. 249 
Chlorostoma piulligo, Mart., the Dusky Turban- 
shell, much resembles the last species. Its seven 
whorls are flattened, its base slightly convex, not 
lined, obliquely streaked, concave and white around 
the deep and wide umbilicus, which gradually 
expands and is partly covered by a white callus, 
and has no spiral ridge within. The color is dull 
purplish or brown, often orange when worn. The 
height of a large specimen is 35mm., breadth, 32- 
mm. Specimens from Monterey are dark red and 
distorted. 
Chloréstoma viridulum, var. ligu- 
latuni, Mke., the Banded 'Turban- 
shell, Figure 280, (Omphalius fus- 
eescens). It has a strong, solid 
turban-shaped shell, whose rusty 
brown whorls are banded with Beare 
raised spiral lines. These lines are broken or 
beaded, and sometimes are dotted with black, giv- 
ing the shell a very characteristic appearance. 
The operculum, as in nearly all the species of 
this group, is thin, horny and cireular. The 
umbilicus is large and distinct, the aperture cir- 
eular, and marked below with rounded knobs. 
Solariélla peramabilis, Cpr., the Lovely Solari- 
ella, has a small, conical shell, which is very ornate, 
with delicate sculpturings. The umbilicus has 
three internal spiral lines, crossed by lirule, and 
even the operculum is sculptured. The height is 
about 15mm. It has been dredged in moderately 
deep water off Catalina Island. 
