EXPLANATION OF PLATES. 329 



36, 37. Bulimulus pilula v. cooperi Dull. Moll. Mex., . . 139 



38. Bulimulus sufflatus Gld. Jour. Bost. Soc., . . . 136 



39. Bulimulus sufflatus Old. Moll. Mex., . .136 



40. 41. Bulimulus juarezi (=sufflatus Gld.). Moll. Mex., . 136 

 42, 44. Bulimulus sufflatus Gld. Specimens, .... 136 

 45, 47. Bulimulus (Nsesiotus) unifasciatus Sowb. Specimens, . 116 



48. Bulimulus dealbatus Say, apex. Pilsbry, del., . . .128 



PLATE 19 (Orthotomium). 



49. Bulimulus pallidior Sowb. Moll. Mex., . . .142 



50. Bulimulus pallidior v. striatulus. Specimen, . . . 143 



51. Bulimulus pallidior Sowb. Specimen, .... 142 



52. Bulimulus vegexpira Coop. (=v. striatulus). Cal. Acad., 143 



53. Bulimulus vegexpira Sowb. ...... 142 



54. Bulimulus vegetus (==pallidior). Boston Jour., . . 142 



55. Bulimulus pallidior Sowb. Specimen, .... 142 



56. 57. Bulimulus montezuma Dall. Specimens, . . . 144 

 58, 59. Bulimulus gabbi C. & F. Moll. Mex., . 147 

 60-62, Bulimulus xantusi W. G. B. Specimens, . . . 149 



63. Bulimus digitale Reeve. C. Icon. 



64. Bulimulus levis Dall. P. Cal. Acad., .... 140 



65. 66. Bulimulus baileyi Dall. Specimens, .... 145 



67. Bulimulus baileyi Dall. P. U. S. N. M., . .145 



68. Bulimulus pallidior v. striatulus. Pilsbry, del., . . 143 



PLATE 20 (Orthotomium, Plicolumna). 



69. 70. Bulimulus excelsus v. sinalose Pils. Specimens, . 141, 142 



71. Bulimulus excelsus Gld. Bost. Journ., .... 141 



72, 73. Bulimulus inscendens W. G. B. Moll. Mex., . 150 



74. Bulimulus inscendens W. G. B. Specimen, . . .150 



75. Bulimulus beldingi v. monticola. P. Cal. Acad., . . 150 



76. Bulimulus beldingi v. alta Dall. P. Cal. Acad., . 149 



77. Bulimulus artemisia W. G. B. Specimen, . . . 152 



78. Bulimulus artemisia W. G. B. P. Cal. Acad., . 152 



79. Bulimulus artemisia W. G. B. Pilsbry, del., . 152 



80. 81. Bulimulus abbreviatus Coop. P. Cal. Acad., . 153 

 82-85. Bulimulus ramentosus Coop. Specimen, . 153 



PLATE 21 (Sonorina). 



87, 88. Bulimulus spirifer Gabb. Moll. Mex., . . 158 



89-91. Bulimulus spirifer Gabb. Specimens, . . 158 



92, 93. Bulimulus veseyianus Dall. Proc. U. S. N. Mus., . 160 

 94-99. Bulimulus lamellifer Pils. Specimens, . . .160 



1. Bulimulus bryanti Coop, (rimatus Pfr.). P. U. S. N. 



Mus., .157 



2, 3. Bulimulus bryanti Coop. (=rimatus Pfr.), Specimen, 157 



22 



