436 EXPLANATION OF PLATES. 



FIGUBE. PAGE. 



35. Tapes litterata, Linn. Indian Ocean, . . . .182 



36. Tapes geographica, Chemn. Mediterrranean, . . 182 



37. Pullastra Malabarica, Chemn. Malabar, . . . 182 



38. Cyrena Cyprinoides, Quoy. Ceylon, . . . . 184 



39. 40. Velorita Cyprinoides, Gra3\ Japan, . . .185 

 41-43. Batissa violaeea, Lam. East Indies, . . . 185 

 44-46. Corbicula cor, Lam. Euphrates River, . . 185 

 4t. Sphserium corneum, Linn. Europe, . . . .186 



48. Pisidium compressum. Prime. United States, . . 186 



49. Cyrenoides Dupontii, Joannis. River Senegal, . . 187 

 50-52. Cyprina Islandica, Linn. Northern Seas, . . 187 

 53-55. Isocardia cor, Linn. England, .... 189 



56. Isocardia (Meiocardia) Moltkiana, Chemn. Philippines, 189 



57. Cypricardia (Glossocardia) obesa. Reeve. Mauritius, 191 



58. 59. Coralliophaga coralliophaga, Gmel. Lord Hood's 



Isle, 191 



Plate 115. 



29. Cythereopsis Hj^dana, Conr. Eocene ; Alabama, . 179 



31. Cyrena (Egeta) Floridana, Conr. Florida, . . . 184 



32. Cja-ena (Diodus) tenuis, Gabb. Cret. ; California, . 185 



33. 34. C^^rena (Isodoma) Cyrenoides, Desh. Eocene ; 



Paris Basin, . . . . . . . . 185 



35. Yeleda lintea, Conrad. Cretaceous ; U. S., . . 188 



36, 37. Cytherea (Caryatis) Alcyone, Romer. Habitat ? 178 



38. Dosiniopsis lenticularis, Rogers. Eocene ; U. S., . 178 



39, 40, 41. Grateloupia donaciformis, Desm. Faluns de 



Dax, 179 



42. Cyprimeria discus, Matheron. Cretaceous; Europe, 180 



43. Clementia papyracea, Gray. Philippines, . . . 181 



44. Thetis major, Sowb. Fossil. Blackdown ; England, . 181 



45. Scaldia Lambotteana, Ryckholt. Carboniferous ; Belg., 181 

 48. Pisidium compressum. Prime. United States, . . 186 

 49-51. Roudairia Drui, Munier-Chalmas. Cret. ; Libian 



Desert, . - . . . . . . .353 



53. Yeniella tumida, Nyst. Crag ; Antwerp, . . . 188 

 54-56. Anisocardia elegans, Munier-Chalmas. Kimmer- 



idge ; Cape la Heve, ....... 189 



57. Venilicardia cordiformis, d'Orb. Gault ; Yonne, . 189 

 58-60. Isocardia (Cardiodonta) Balinensis, Laube. Jur- 

 assic; Europe, 190 



61. Isocardia (Tsoculia) ventricosa, M'Coy. Carbonifer- 



ous ; Ireland, . . , ... . . 190 



62, 63. Microdon subelliptica, Hall. Carboniferous; Iowa, 191 



64. Anisodontacomplanatum, Desh. Eocene; Paris Basin, 191 



65. Anisodonta (Clotho) Faujasii. Fossil ; Bancs cal- 



caires, Drome, 192 



