201 — 



Leia Alb. 124. 

 Leiocheila Alb. 109, 

 Leiodomus Sw. 30. 

 Leiostracus Alb. 120. 

 Leonia Gray. 152. 

 Lepidopleurus Eisso. 87. 

 Leptachatina Gld. 130. 

 Leptarioiita Gross, et F. 106. 

 Leptaxis Lowe. 108. 

 Leptinaria Bk. 131. 

 Leptochiton Gray. 87. 

 Leptoconclms Klipp. 34. 

 Leptoconus Sw. 52. 

 Leptomerus Alb. 120. 

 Leptopoma Pfr. 148. 

 Leptoxis Rfq. 61. 

 Leucochroa Bk. 97. 

 Leucocliila Mrts. 133. 

 Leucozonia Gray. 37. 

 Leukoma Eöm. 169. 

 Levantina Kob. 107. 

 Levenia Gray. 45. 

 Ligims Mft. 122. 

 Lima Brug. 190. 

 Liraax L. 140. 

 Limicolaria Schmcb. 123. 

 Limnaea Lam. 142. 

 Limnophysa Fitzgr. 142. 

 Lingula Brug. 194. 

 Lioconcha Mörch. 167. 

 Lithopoma. 77. 

 Liotia Gray. 77. 

 Liparus Alb. 126. 

 Lithoconus Mörch. 51. 

 Lithodomus Guy. 184. 

 Lithoglyphus Mhlfld. 66. 

 Littorina Fer. 64. 

 Livona Gray. 78. 

 Lopha Bolt. 192. 

 Lophyrus Poli. 87. 

 Loripes Poli. 175. 

 Lotorium Mft. 29. 

 Lucapina Gray. 84. 

 Lucidella Sw. 154. 

 Lucina Brug. 175. 

 Lunatia Gray. 46. 



Luponia Gray. 57. 

 Lutraria Lam. 161. 

 Lyonsia Turt. 159. 

 Lyria Gray. 39. 

 Lysinoe H. A. Ad. 104. 



M. 



Machaera Gld. 158. 

 Machaerodonax Eöm. 164. 

 Macoma Leach. 163. 

 Macroceramus Gldg. 124. 

 Macrochlamys Bens. 93. 

 Macrocyclis Bk. 95. 

 Mactra L. 160. 

 Mactrinula Gray. 161. 

 Macularia Alb. 106. 

 Magilus Mft. 34. 

 Malea Val. 45. 

 Malleus Lam. 185. 

 Mamma Klein. 47. 

 Margarita Leach. 82. 

 Margaritana Schmch. 181. 

 Marginella Lara. 42. 

 Marinula King. 140. 

 Marisa Gray. 69. 

 Marmorostoma Sw. 76. 

 Marpessa Gray. 134. 

 Martesia Xeach. 156. 

 Mastus Bk. 127.' 

 Medora H. A. Ad. 136. 

 Megaleuxina Bttg. 138. 

 Megalomastoma Gldg. 149. 

 Megalophaedusa Bttg. 137. 

 Megara H. A. Ad. 61. 

 Megaspira Lea. 134. 

 Megerlia King. 193. 

 Meiocardia H. A. Ad. 174. 

 Melämpus Mft. 140. 

 Melania Lara. 61. 

 Melanieila Sw. 62. 

 Melanieila Pfr. 131. 

 Melanoides Oliv. 62. 

 Melanopsis Fer. 63. 

 Melantho Bowdch. Q6. 

 Melaraphe Mhlfld. 64. 

 Meleaerrina Lam. 185. 



