Species. 
71. 
72. 
73. 
. petholatus, Sowerby. 
fulgetrum, Reeve. 
linter, Chemnitz. 
aquatilis, Reeve. 
5. spiniger, Sowerby. 
. occidentalis, Reeve. 
. assimilis, Reeve. 
. contractus, Reeve. 
. pictus, Reeve. 
. Sowerbyi, Reeve. 
. seabrieulus, Sowerby. 
. Columbiensis, Sowerby. 
. reticulatus, Reeve. 
. pellis-serpentis, Quoy. 
. luridus, Sowerby. 
. graniferus, Sowerby. 
. undulatus, Quoy. 
. pertusus, Reeve. 
CHITON. 
Detail of sculpture. 
(variously magnified.) 
Species. 
89. 
90. 
91. 
92. 
93. 
94. 
95. 
96. 
97. 
98. 
99. 
100. 
101. 
102. 
103. 
104. 
105. 
Californicus, Nuttall. 
spinulosus, Gray. 
textilis, Gray. 
pallidus, Reeve. 
truncatus, Sowerby. 
Incii, Reeve. 
concentricus, Reeve. 
dispar, Sowerby. 
produetus, Reeve. 
sanguineus, Reeve. 
retusus, Sowerby. 
setosus, Sowerby. 
celatus, Reeve. 
ustulatus, Reeve. 
atratus, Sowerby. 
metallicus, Reeve. 
Grayi, Sowerby. 
