436 
EXPLANATION OF PLATES. 
FIGURE. 
35. 
36. 
37. 
38. 
39, 
4] 
50- 
53-— 
56. 
57. 
58, 
29. 
31. 
32. 
33, 
35. 
36, 
38. 
39, 
42. 
43. 
44, 
45. 
48. 
49— 
53. 
54— 
57. 
58- 
61. 
62 
64. 
65. 
Tapes litterata, Linn. Indian Ocean, . 
Tapes geographica, Chemn. Mediterrranean, 
Pullastra Malabarica, Chemn. Malabar, 
Cyrena Cyprinoides, Quoy. Ceylon, 
40. Velorita Cyprinoides, Gray. Japan, 
—43. Batissa violacea, Lam. East Indies, 
44— 
AT. 
48. 
49, 
46. Corbicula cor, Lam. Euphrates River, 
Spherium corneum, Linn. Europe, 
Pisidium compressum, Prime. United States, 
Cyrenoides Dupontii, Joannis. River Senegal, 
52. Cyprina Islandica, Linn. Northern Seas, 
55. Isocardia cor, Linn. England, 
Tsocardia (Meiocardia ) Moltkiana, Chemn. Philippines, 
Cypricardia (Glossocardia) obesa, Reeve. Mauritius, 
59. late’ Sepals Gmel. Lord Hood’s 
Isle, : ; 5 : 
PLATE 115. 
Cythereopsis Hydana, Conr. Eocene; Alabama, 
Cyrena (Egeta) Floridana, Conr. Florida, . . 
Cyrena (Diodus) tenuis, Gabb. Cret.; California, 
34. Cyrena Ueab omy Cyrenoides, Desh. Hocene ; 
Paris Basin, ; . ; ‘ ‘ : 
Veleda lintea, Conrad. Cretaceous; U.S., : : 
37. Cytherea (Cary atis) Aleyone, Romer. Habitat ? 
Dosiniopsis lenticularis, Rogers. Eocene; U.S8.,  . 
40, 41. Grateloupia donaciformis, Desm. Faluns de 
Dax, 2 : c 3 ‘ ‘ 
Cyprimeria discus, Matheron. Cretaceous ; Europe, 
Clementia papyracea, Gray. Philippines, . ‘ 
Thetis major, Sowb. Fossil. Blackdown ; England, 
Sealdia Lambotteana, Ryckholt. Carboniferous ; Belg., 
Pisidium compressum, Prime. United States, : 
51. Roudairia BEM; Munier-Chalmas. Cret.; Libian 
Desert, - 7 
Veniella ‘tumida, Ny st. " Orag ; ; Antwerp, . ‘ 
56. Anisocardia "elegans, Munier- Chalmas. Kimmer- 
idge; Cape la Heve, ; ‘ ‘ , ‘ 
Venilicardia cordiformis, d’Orb. Gault; Yonne, 
60. Isocardia (Cardiodonta) Balinensis, Laube. Jur- 
assic; Europe, : : . , 
Isocardia | (Isoculia) ventricosa, M’Coy. Carbonifer- 
ous; Ireland, . ‘ 
, 68. Microdon subelliptica, Hall. Carboniferous ; Iowa, 
Anisodonta complanatum, Desh. Eocene; Paris Basin, 
Anisodonta (Clotho) hee Fossil : Banes  cal- 
caires, Drome, : . 
