PIERGCEDISHELES AND CHITONS 263 
can then be placed in warm fresh water, and after 
the lack of salt has destroyed life, and the muscles 
have lost their contractility, the animal may be 
unbound, the viscera removed with a sharp knife, 
and the parts to be preserved be placed in a flat 
position to dry. 
There are a large number of species of Chitons 
found on this coast, and to attempt to describe 
them all would be beyond the scope of this work. 
They will all be mentioned in the List, with the 
approximate localities, many of which are remote 
from most collectors. The best work to consult 
for full descriptions is the Manual of Conchology, 
published by the Philadelphia Academy of Natural 
Sciences, Vols. XIV and XV. 
Lepidopleirus néxus, Cpr., the Joined Chiton, 
has a small, whitish-ashen shell, with valves 
gothic arched. Length, 7.5mm.; dredged near 
Catalina Island. 
Lepidopletrus internéxus, Cpr., the Inter-joimed 
Chiton, has a similar shell, but is smaller, and 
orange-colored. Length, 4.5mim.; from Santa Bar- 
bara. 
Tonicélla lineata, Wood, the Red- 
lined Chiton, Figure 295. This spe- 
cies is a beautiful representative of 
this group of mollusks. The valves 
are smooth, moderately arched in 
the center, and are of a light reddish 
eolor. This background of color is 
crossed by wavy or zigzag lines of 
dark brown, bordered above with 
