310 REFERENCE TO PLATES, VOL. XV. 



FIGURE PAGE 



PLATE 21. 



23-25. Holospira " pilocerei " (= tetrelasmus) . Abbild. 



Ill 73 



26, 27. Holospira " pilocerei " (= tetrelasmus). After 



Strebel , 73 



28, 29. Holospira " pilocerei var." J. de C., 1892 75 



30, 31, 35. Holospira goldfussi Mke. Pilsbry, del 76 



32-34. Holospira goldfussi Mke. Specimens 76 



36-38. Holospira goniostoma Pfr. After Strebel 77 



39-41. Holospira goniostoma Pfr. Moll. Mex 77 



PLATE 22. 



42-44. Holospira nelsoni Pils. Pilsbry, del 79 



45-48. Holospira pilocerei Pfr. Abbild. I 75 



49-51. Holospira pfeifferi Mke. Abbild. III.. ., 80 



52, 53. Holospira tryoni Pfr. Novit. Conch 83 



54, 55. Holospira tryoni Pfr. After Strebel 83 



56-58. Holospira tryoni Pfr. Pilsbry, del 83 



PLATE 23. 



59. Holospira minima Martens. Pilsbry, del 94 



60. Holospira minima Martens. Biologia 94 



61-63. Holospira remondii Gabb. Moll. Mex 93 



64, 65. Holospira crossei Ball. Proc. U. S. Nat. Mus 92 



66, 67. Holospira coahuilensis W. G. B. Amer. Journ. 



Conch 91 



68, 69. Holospira coahuilensis W. G. B. J. de C., 1892. . 



70. Holospira remondii Gabb. Pilsbry, del 93 



71. Holospira teres var. hogeana Mart. (= veracruziana 



Dall.). Biologia 105 



72. 73. Holospira hamiltoni Ball. Proc. . S. Nat. Mus.. 88 



74. Holospira pasonis Ball. Pilsbry, del 



75. Holospira crossei Ball. Pilsbry, del 



76. Holospira pilsbryi Ball. Pilsbry, del 86 



PLATE 24. 



1-4. Holospira remondi Gabb. Pilsbry, del 



5-9. Holospira minima Martens. Pilsbry, del 94 



PLATE 25. 



1-7. Holospira roemeri Pfr. Pilsbry, del 



8, 9, 10. Holospira fusca Martens. Pilsbry, del 



11-14. Holospira fusca Martens. Biologia 95 



