EXPLANATION OF PLATES, 423 



32, 33. Zonites (Animonitella)Yatesii, Cooper. Califoi-nia, 34 



34. Zonites (Steiiotrema) hirsuta, Sny. United States, . 34 



35. Zonites (Triodopsis) tridentata, Say. United States, . 34 



36. Zonites (Xolotrema palliata, Say. United States, . 34 



37. Zonites (Isognomostoma) personata, Lam. Europe, . 35 



38. Zonites ( Mesodonj albolabris, Say. United States, , 35 



39. Zonites (Ulostoma) profunda, Say. United States, . 35 



40. Zonites (Acanthinula) aculeata, jVliill. Europe, . . 29 



41. 42. Helix (Vallonia) pulchella, Miill. Europe, U. S., . 39 



43. Helix (Petasia) bidens, Chemn. Europe, . 



44. Helix (Hygromia) hispida, Miill. Europe, . 



45. Helix (Nummulina) numnius, illirenb. Syria, 



46. Helix (Euparypha) Pisana, Miill. So. Europe, 



47. Helix (Jacostaj filiinargo, Ziegl. Tauria, . 



Plate 95. 



39 

 37 

 39 

 37 

 38 



48. Helix (Helicella) ericetorum, Miill. Europe, . . 37 



49. Helix (Turricula) pyramidata, Drap. Europe, , . 38 



50. Helix (H3"stricella) bicarinata, Sowb. Madeira, . . 38 



51. Helix (Plcctotropis) elegantissinia, Pfr. Loochoo Is., 39 



52. Helix (Odontui-a) Ghiesbreghti, Nyst. Mexico,. . 40 



53. Helix (Lysinoe) fidelis, Gray. Oregon, California, . 40 



54. Helix (Eucampylfea) Pouzolzi, Payr. Corsica, . .41 



55. Helix (Chilotrema) lapicida, Linn. Europe, . .. 41 



56. Helix (Arionta) arbustorum, Linn. Europe, . . 41 



57. Helix (Arionta) Californiensis, Lea. California, . 41 



58. Helix (Eurystoma) vittata, Miill. Cejdon, . . .40 



59. Helix (Eremina) desertorum, Forsk. Egypt, . , 42 



60. Helix (Rhagada) reinga, Gray. New Zealand, . . 42 



61. Helix (Tachea) hortensis, Miill. Europe, . . .42 



62. Helix (Macularia) Niciensis, Per. So. Europe, . . 42 



63. Helix (Iberus) Gualtieriana, Linn. So. Europe, . . 43 



64. Helix (Leptoloma) fuscocincta, Ads. Jamaica, . . 37 



65. Helix (Dialeuca) nemoraloides, Ads. Jamaica, . . 36 



66. Helix (Hemicycla) Saulcyi, d'Orb. Canarj^ Is., . . 43 



67. Helix (Plebecula) punctulata, Sowb. Madeira, . .43 



68. Helix (Leptaxis) undata, Lowe. Madeira, . . .43 



69. Helix (Lampadia) Webbiana, Lowe. Madeira, . . 43 



70. Helix ( Plagioptychia) loxodon, Pfr. Hayti, . . 36 



71. Helix (Erepta) stylodon, Pfr. Mauritius, . . .46 



72. Helix (Dentellaria) Josephinse, Per. Guadeloupe, . 32 



73. Helix (Geotrochus) Ferussaci, Lesson. N. Guinea, . 45 



74. Helix (Oxychona) bifasciata, Burrow. Brazil, . . 36 



75. Helix (Acavus) hsemastoma, Linn. Ceylon, . . 45 



