47 Unio Arctatus, p. 207 
48 — Monodontus, p. 210 
49 — Tetralasmus, p. 198 
50 — Declivis, p. 200 
51 — Apiculatus, p. 178 
52 — Confragosus, p. 210 
53 — Platyrrhinchus, p. 205 
54 — Crassissimus, p. 209 
55 — Leeai, p. 182 
56 — Spinosus, p. 182 
57 — Childreni, p. 193 
58 — Smithii, p.195 
59 — Bonellii, p. 212 
60 — Delphinulus of More- 
let, APP. 
PLATE XXIV. 
1 Unio Foliatus, p. 176 
2 — Haysianus, p. 188 
3 — Hembeli, app. 
4 —  Cucumoides, app. 
5 — Grayanus, p. 177 
6 — Greenii, p. 191 
7 — Aisopus, p. 181 
8 — Ventricosus, p. 189 
9 — Amenus, APP. 
10 — Curreyanus, APP. 
11 Hyria Avicularis, p. 214 
12 Castalia Inflata, p. 173 
23 
Anodonta Wahlamatensis, 
p- 215 
Latomarginata, 
p. 221 
——— Angulata, p. 222 
Sinuata, p. 224 
Ensiformis, p. 
223 
Blainvilleana, p. 
222 
Chama Pellucida, p. 828 
Cleidotherus Chamoides, p. 
228 
Tridacna Serrifera, p. 232 
Modiola (Lithodomus) Ca- 
nalifera, p. 239 
(Lithodomus) Plu- 
mula, p. 239 
(Lithodomus) Cin- 
namonea, p. 238 
Metcalfei, p. 235 
Philippinarum, p. - 




235 

Trapesina, p. 237 
Elongata(as Cunei- 
formis), p. 237 
Striatula, p. 241 
Subramosa, p. 241 



Mytilus (Dreissena) Leuco- 
pheatus, p. 251 
Hirsutus, p. 244 

