Vlll 
Family II.— Pectenides. 
Page. 
Genus 19. Plicatula, Lamarck 150 
20. Plagiostoma, Lluyd 150 
21. Diancliora, Sowerby 152 
2‘2, Hinnus, Defrancc ... 153 
23. Pecten, Bruguiere... 153 
24. Lima, Bruguiere ... 158 
Sub-Genus. Limatula, S. Wood 159 
Grand Division III. 
Tribe I.— Mallacea. 
Genus 25. Avicula, Lamarck ... 159 
25. Pterinea, Goldfuss... 164 
26. Monotis, Bronn. 164 
27. Gervillea, Defiance.. 164 
28. Crcnatula, Lamarck. 165 
29. Catillus, Bronguiarte 165 
30. Posidonia, Bronn... 168 
31. Peraa, Bruguiere ... 168 
Tribe II.— Mytilacea. 
32. Pinna, Linnieus. 169 
83. Dreissina, Van Bcni- 
den. 170 
34. Mytilus, Linnaeus. ... 170 
35. Modiola, Lamarck ... 171 
36. Litliodomus, Cuvier.. 257 
Order II.—DIMYARIA. 
Grand Division I. 
Tribe 1.— Chamacea. 
1. Chama, Braguierc ... 176 
2 Caprina, D'Orbigny ... 176 
Grand Division II.— Lamellipedes. 
Tribe 1.— Nayades. 
3. Anodon, Bruguiere... 176 
Page. | 
Genus 4. Unio, Bruguiere . 176 
5. Alasmodon, Say. 181 
Tribe II.— 1 Trigonacea. 
6. Trigonia, Bruguiere ... 181 
7. Nucula, Lamarck. 184 
8. Pleurodon, S. Wood... 188 
9. Pcctunculus, Lamarck 188 
10. Macrodon, Lycett ... 190 
11. Area, Linnauis . 190 
12. Cuculhca, Lamarck.. 192 
13. Axinus, Sowerby ... 104 
Family IV.— Cardiacea. 
14. Paehymya, Sowerby. 195 
15. Ilippopodium, Cony- 
bearc. 195 
16. Megalodon, Sowerby 196 
17. Isocardia, Lamarck .. 196 
18. Cardiomorpha, Ko- 
ninck. 197 
19. Opis, Defrancc . 197 
20. Sphjrra, Sowerby ... 197 
21. Edmondia, Koninck. 198 
22. Cypricardia, Lamarck 198 
23. Cardium, Limucus... 199 
24. Pleurorhynclms, Phil¬ 
lips.,. 201 
25. Cardiola, Broderip... 202 
26. Myoconelia, Sowerby 202 
Family V.— Conchacea. 
Sub-Division I.— Marine. 
27. Vcncricardia,Lamarck 202 
28. Pullastra,Sowerby... 203 
29. Venus, Linnaeus. 204 
30. Cythcrca, Lamarck.. 205 
Page. 
Gcnu6 31. Artemis, Poli..... 207 
32. Cyprina, Lamarck ... 207 
Sub-Division II*— FLUVIATILE. 
33. Cyrena, Lamarck ... 208 
34. Cyclas, Bruguiere ... 209 
35. Piscidium, Pfeiffer... 109 
Grand Division III.— Tenuipedes. 
Tribe I.- -Nymphacea. 
Sub-Division I. 
36. Astarte, Sowerby ... 210 
37. Cardinia, Agassiz ... 218 
Sub-Division, II. 
38. Donax, Linnaeus. 214 
39. Trigonellites, Parkin¬ 
son . 214 
40. Lucina, Bruguiere... 215 
41. Corbis, Cuvier . 216 
42. Tellina, Linnaeus ... 216 
43. Arcojiagia, Leach ... 218 
Sub-Division III.— Solenaiues. 
Genus 44. Psammobia,Lamarck 218 
45. Sanguinolaria, ditto. 219 
Tribe II.— Lithophagi. 
Genus 46. Petri cola, Lamarck... 220 
47. Sphenia, Turton. 222 
48. Saxicava,Lamarck... 221 
49. Agina, Turton . 221 
Tribe III— Cormjlacea. 
Genus 50. Pandora, Bruguiere.. 221 
51. Corbula,Bruguiere ... 221 
52. Nau-a, Gray . 223 
Page. 
Genus 53. Potomomya, J. Sow¬ 
erby . 223 
Family IV.—Mactracea. 
Genus 54. Amphidesina, La¬ 
marck . 225 
55. Crassatella, Lamarck 225 
56. Tellimya, Brown ... 225 
57. Montacuta,Turton... 225 
58. Thetis, Sowerby. 225 
Sub-Division III. 
Genus 59. Mactra, Linnaeus ... 226 
60. Mactrina, Brown ... 226 
61. Lutraria, Lamarck... 226 
Grand Division IV.—Crassipedes. 
Family I.—Myaria. 
Genus 62. Mya, Linnaeus. 228 
63. Thracia, Leach . 229 
64. Anatina, Lamarck... 229 
65. Lysianassa, Munster. 229 
Tribe II.—Solknides. 
Genus 66. Solemya, Lamarck... 230 
67. Panoprea, Menard... 230 
68. Solen, Linnaeus. 281 
69. Pholadomya, J. Sow¬ 
erby . 231 
Family III.—Pholadaria. 
Genus 70. Pholas, Linnams ... 233 
Family II.— Tibicola. 
Genus 71. Gastrochama, ^Spon¬ 
gier . 234 
72. Tercdina, Lamarck. . 234 
73. Teredo, Linnaeus ... 235 
74. Fistulana, Bruguiere 236 
CLASS THIRD. 
OIEEEPEDA, OR BARNACLES. 
Genus 4. Coronula, Lamarck. . 233 
Order I.— PEDUNCULATA. 
Order II.-SESSILIA. 
Genus 2. 
Adna, Lcacli .... 
.... 237 
Genus 1. Pollicipcs, Leach ... 236 
Genus 1. Balanus, Lamarck .. 
237 
3. 
Clitia, Lcacli . 
.... 238 
CLASS FOURTH. 
ANNELIDA. 
Order I. —SEDENTARIA. Genus 2. Vermilia, Lamarck... 211 Genus 5. Cornuoidcs,Brown... 242 1 Family II. — Malda.nle. 
Family I.— Serpulacea. 1 3. Spirorbis,Lamarck... 242 | 6. Serpulitcs,Murchison 242 Genus 7. Dcntatum, Linnceus. 243 
Genus 1. Serpula, Linnaeus ... 238 
4. Cyclogyra, S. Wood. 242 j 
