432 EXPLANATION OF PLATES. 
FIGURE. PAGE. 
36, 37. Bothrocorbula viminea, Guppy. Tertiary; W.I.,. 139 
38. Corbulomya antiqua, Desh. Eocene; France, . . 141 
39. Edmondia Unioniformis, Phil. Cret.; ; Bolland (England, 147 
40. Cardiomorpha excentrica, Agass. "Jurassic ; Europe, 147 
41, 42. Ceromya Aalensis, haven Fossil. Dogger Lor- 
raine, 147 
43. Gresslya. zonata, Agass. Jurassic ; Europe, : : - 148 
44, Allorisma sulcata, Flem. Carboniferous ; Europe, . 148 
45. Myacites (Myopsis) lata, Agass. Neocomian ; Europe, 148 
46. Myacites ecattlaia sr: ac sr avis U. Jurassic; 
Kurope, . : ! . 149 
PLATE 108. 
47. Pandora (Celodon) Ceylonica, Sowb. Ceylon, . . 148 
48. Pandora oblonga, Sowb. Gamberoon, ; ' . 143 
49. Pandora inequivalvis, Linn. England, F : . 148 
50. Myodora striata, Quoy. New Zealand, : : . 144 
51-53. Myochama anomioides, Stutchb. Australia, . . 144 
54. Myochama Keppelliana, A. Adams. Australia, ; . 144 
55. Thracia pubescens, Pultn. 4. England, . d . 144 
56. Thracia plicata, Desh. W. Indies, ‘ : . 144 
57-59. Periploma inzequivalvis, Schum. Brazil, , . 145 
60. Periploma (Cochlodesma) pretenuis, Mont. England, 145 
61. Periploma (Cochlodesma) Leana, Couthuoy. Mass., . 145 
62, 63. Periploma (Pelopia) brevifrons, H. Ads. Hab.unk., 146 
64, 65. Alicia angustata, Angas. Australia, . 5 . 146 
66. Lyonsia Norvegica, Chemn. England, é ; . 146 
67. Lyonsia (Entodesma) Chiloensis, Phil. Isl.Chiloe, . 146 
68. Mytilimeria Nuttalli, Conr. California, dain 
69. Myacites (Arcomya) oblonga, Agass. Lias; Mulhouse, 149 
10. Tyleria fragilis, H. and A. Adams. Mazatlan, ; . 149 
71. Anatina truncata, Lam. Philippines, . ‘ F . 150 
72. Anatina (Cercomya) striata, Agass. U. Jurassic; Eur., 150 
73. Anatina (Anatimya) anteradiata,Conr. Cret.; Miss.,. 150 
14. Cyathodonta granulosa, Ads. and Reeve. China Sea, 151 
75. Goniomya Duboisi, Agass. lL. Oolite; Europe, . Pep | 
76, 17. Pholadomya candida, Sowb. West Indies, . . 151 
78-80. Newromya quadrata, Gabb. Tertiary ; West Indies, 153 
81, 82. Ostomya papyria, Conr. Tertiary; Upper Amazon, 153 
83. Tellinopsis subemarginata, Conr. Hamilton Group, 
New York, : : . : , : ; . 153 
PLATE 109. 
84. Chenomya Cooperi, Meek. Carboniferous; Kansas, . 151 
85. Pholadomya exaltata, Agass. Jurassic; Europe, . 151 
86. Pholadomya glabra, Agass. Liassic; Europe, . pelo 
