LIST OF GENERA. 



287 



Page 



Janthina. Janthium, a violet - - - 196 



Leptoconchus. Leptos, Gr., thin ; conche, shell 207 

 Lima. A file - - - -122 



Limacina. From Umax, a snail - 137 



Limax. A snail - 160 



Lingula. A tongue - - - 48 



Lithodomus. Lithos, Gr., a stone ; domos, house 110 



Lithotrya. Lithos, truo, to bore through - 40 



Loligo - - - - - - 273 



Loligopsis - 273 



Luc in a. A name given to Juno and Diana - 83 



LuTRARiA. Lutrum, mud - - 73 



Lymnea. Limus, mud - - - - 183 



Mactra. A kneading-trough - - 73 



Mag ills ------ 205 



Malleus. A hammer - - - - 116 



Marginella. A little rim or border - - 250 



Melampus. Melas, Gr., black ; pous, a foot - 203 



v Melania. Melas, Gr., black - - - 186 



Melanopsis. Do. - 187 



Melo. A melon ----- 249 



Mesodesma. Mesos, Gr., in the middle ; desma, a 



ligament - - - - 75 



Mitra. A head-dress - 246 



Modiola. Modilus, a little measure - - 1 10 



Monoceras. Monos, Gr., single ; ceras, a horn - 238 



Monodonta. Monos, Gr., single ; odos, a tooth - 214 



Mya. Myon, Gr., a muscle - - 68 

 My tills - - - ~ - -111 



Murex. A sharp rock - 227 



