278 
67. 
68. 
69. 
70. 
(Ale 
72. 
73. 
74. 
790. 
76. 
TC 
thee 
CS) 
80. 
81. 
82. 
83. 
84. 
85. 
86. 
WEST AMERICAN SHELLS 
P. setosa, Cpr., described in this book. 
Family, MyTILIDAE 
Genus, mytilus, Linn. 
M. stearnsu, Pils. & Raymond, Nautilus XII, 
pp. 69 and 70. 
M. californanus, Conr., Figure 14. 
M. edulis, Linn., described in this book. 
var. glomeratus, Gld., this book, p. 32. 
Genus, Septifer, Reeluz 
S. bifurcatus, Rve., Nautilus XII, p. 69. 
Genus, Modiolus, [,qmarck. 
M. modiolus, Linn., Nautilus IX, p. 39. 
M. capax, Conr., described in this book. 
M. fornicatus, Cpr., described in this book. 
M. rectus, Conr., Figure 16. 
M. plicatulus, Lam., Nautilus XIII, p. 86. 
M. politus, Ven., San Pedro, teste Oldroyd. 
M. taylori, Dall, B. C. Bull. 1, p. 51, *“*Vice- 
toria, on coralline, in tide pools.’’ 
M. rectus, var. flabellatus, Gld., B. C. Bull. 1, 
Deol: 
M. opifex, Say., San Pedro, deep water, very 
rare. 
Genus, aauia, H. & A. Adams 
A. falcata, Gld., Figure 17. 
A. stylina, Cpr., described in this book. 
Genus, Lithophagus, Muhlfeldt 
L. plumula, Hanl., described in this book. 
Genus, Modiolaria, Beck 
M. levigata, Gray, Nautilus VII, p. 101. 
M. vulgaris, Gray, Puget Sound. 
