Macteay Memortat Vouume. 
PLATE Vu. 
Fig. 60.—Turritella tricineta ( x 3). Fig. 67.—Rissoa annulata (x 10). 
61.— 1 bierneta ( x 2). 68.— ,, emarginata (x 10). 
62.—Lglisia planostoma ( x 10). 69.— ,,  semisulcata ( x 15). 
63.—Rissoa rugulosa( x 5). 70.—Vermetus moniliferus ( x 2). 
64.— ,,  «impressa (x 10). 71.—Scalaria nympha ( x 10). 
65.— ,, gradata (x 10). 72.— 4,  corulum ( x 20). 
66.— ,, rugosa (x 10). 73.—Trochus conicus (nat. size). 
Fig. 74.—V'rochus chathamensis : a. Upper view ; 6. side view ; c. lower view ( x 2). 
75.—Calhostoma ponderosum (nat. size). 
76. 
77.—Dentalium conicum ( x 2). 

Megatebennus moniliferus : a. Upper view ; 6. lower view (nat. size). 
18.— FA nanum (x 2). 
79.— 5 ecostatum (x 3). 
80.—[ Vide PuatE 1x.] 
81.— Mactra lavata: a. Outer view ; b. inner view ( x 2). 
82.— ,, crassa: a. Outer view ; b. inner view (nat. size). 
83.—Standella rudis: a. Outer view ; 6. inner view (nat. size). 
PLATE Ix. 
Fig. 80.—Thracia vitrea ; a. Outer view ; 6. inner view ( x 2). 
84.—Lutraria solida: a, Outer view ; 6. inner view (nat. size). 
85.—Cecella pusilla : a. Outer view ; 6. inner view ( x 2). 
86.—Tellina angulata : a. Outer view ; 6. inner view ( x 2). 
87.— Venus sulcata : a. Outer view ; b. inner view (nat. size). 
88.— ,, gibbosa. a. Outer view ; 0. inner view ( x 2). 
89.—Cytherea assimilis : a. Outer view ; 6. inner view (nat. size). 
£0,—Loripes concinna: a.Outer view ; 6. inner view ( x 4). 
91.—Mysia ampla: a. Outer view ; b. inner view (nat. size). 
92.—Kellia robusta ; a. Outer view ; 6. inner view (x 5). 
93.— ,, effosa. a. Outer view ; b. inner view (x 8). 
94.—WMytilicardia trigonopsis : a. Outer view ; b. inner view ( x 6). 
95.—Anomia wndata. a. Outer view ; b. inner view (x 2). 

CORRIGENDA. 
Page 46, line 9—add xu. fig. 24. 
Page 72, last line but one—/or figs. 28-38, read figs. 78-83. 
