INDEX TO GENERA AND SUBGENERA OF MOLLUSCA. 



Heligmostoma, 36. 



Helisoiiia, 55. 



Helisoma, see Planorbis. 



Helix, 56, 70. 



Nelix, see Ariophanta. 



Hemiconus, 50. 



Hemipleurotoma. 51. 



Hemiplicatula^ see Semipllcatula. 



Hemismus, see Seniisinus. 



Here, 11. 



Herouvalia, 5, 62, 114. 



Heleiophol.is, i. 



Heteropholiis, see Heteiopholas. 



Nimhia, see Hindsiella. 



Hindsiella, 12. 



Hippagus, see Kellyella. 



Hippochrenes, 41. 



Hipponyx, 30. 



Homalaxis, 33. 



Homalina, 5. 



Homo/oma, see Peratotoma. 



Hydrobia, 31, 113. 



Hydrobia, see Assiminea, Bithinella, 



Lapparentia, Nystia, Stenothyra, 



Tomichia. 



Infundibulum, see Calyptrsea. 

 Ischiwdactylus, see Arasodactylus. 

 /socardia, see Chama. 

 Isodoma, 7. 

 /sodoma, see Mactra. 

 Isthmia, 57. 



Jagonia, 63. 

 Jouannetia, i, 61. 



Keilostoma, see Paiyphostoma. 

 Kellya, see Kellyia. 

 Kellyia, 12, 63. 

 Kellyella, 13. 



Lacuna, 33, 65, 115. 

 Lacuna^ see Micreschara. 

 Lacunaria, 29. 

 Lacunella, 34. 

 Lacunodon 34, 115. 

 Lacunoptyxis. 34. 

 Lseocochlis. 39. 

 Lcevibuccinum, 45. 

 La^videntalium, 20. 

 Lainpania, see Batillaria. 

 Lampusia, 43, 66, iii. 

 Lapparentia, 31. 

 Lartetia, 31. 

 Lasaea, 13. 

 Latirofusus, 47. 

 Latirulus, 46. 

 Latirus, 46. 

 Laubriereia, 13, 63. 

 Leda^ see Nuculana, 



Leiosioma, see Sycum 



Lepidopleurus, see Chiton. 



Lepton, 12, 114. 



Lepiopoma, 30. 



Leptoscapha, 48. 



Leptothyra, 23. 



Leuconia, 56. 



Leucorhynctiia, 23. 



Leucozonia, 46. 



Lima, 18, 63, 112. 



Limatula, 18. 



Limea, 18. 



Limnoea, 55, 69. 



Limntrus^ see Limna^a. 



Limopsis, 15, 63. 



Liocarenus, 54, 113. 



Liomesus, 45. 



Liotia, 22. 



Liotina, 22. 



Lissochilus, 24. 



Litliocardium, 9. 



Lithoconus, 50. 



Lithodomu^, 17, 63. 



I.it/wp/iagiis, see Lithodomus. 



Litiopa, 32. 



Litwpa, see Entomope. 



Littorina, 33. 



Littonna, see Cavllabium, Tuba. 



Littoriniscala, 27. 



Lobantale, 20. 



Loripinus, 12, 63. 



Lovenella, see Cerithiella. 



Loxocardium, g. 



Loxoptyxis, 25. 



Lucina, 10, 63. 



Lticinslla^ see Divaricella. 



Ludovicia, 12. 



Luponia, 42. 



Lutetia, 13, 63. 



Lymncsa^ see Limnasa. 



Lyonsia, 3. 



Lyoiisia, see Endomargarus. 



Lyria, 48. 



Lyrofusus, 45. 



Lyrofusus, see Siphonalia. 



Lyropura, 44. 



Macaliopsis, 4. 

 Macromphalina, 29. 

 Macrophysa, 55. 

 Macrospira, 34. 

 Mactra, 3, 61. 

 Mangilia, 53. 



Margarita, see Eumargarita. 

 Margaritana, 14. 

 Marginella 48, 66, 115. 

 Margineulima, 26. 

 Marinula, 56. 

 Martesia, i, 61. 

 Mastus, 57. 



