352 REFERENCE TO PLATES, VOL. XIX. 



24, 25. Spiraxis cacahuamilpensis Herrera. After Herrera 28 

 26. Pseudosubulina orizabensis Pils. Acad. coll. Win- 

 chester, del 7 



PLATE 3. 



27, 28, 29. Spiraxis procerus C. B. Ad. Acad. coll. 



H. W., del 33 



30, 31. Spiraxis procerus (type of B. nitidiuscula C. B. 



Ad.) Adams coll. H. P., del 34 



32. Spiraxis annae Pils, Henderson coll. H. W., del.. . 39 



33, 34. Spiraxis calus Pils. Adams coll. Pilsbry, del. . . 42 



35. Spiraxis micans C. B. Ad. Adams coll. Pilsbry, del. 42 



36. Spiraxis clava Reeve. Conch. Icon 34 



37. 38. Spiraxis poeyanus Pf r. Acad. coll. H. W., del. 45 



39. Spiraxis perstriatus errans Pils. Henderson coll. 



H. W., del 41 



40. Spiraxis unus Pils. Henderson coll. H. W., del. . . 44 



PLATE 4. 



41,42. Spiraxis perplexus C. B. Ad. Acad. coll. 



H. W., del 38 



43. Spiraxis laeviusculus C. B. Ad. Adams coll. H. W., 



del 35 



44. Spiraxis laeviusculus C. B. Ad. Acad. coll. H. W., 



del 35 



45. Spiraxis aberrans Pfr. (= laeviusculus). Conch. 



Icon 36 



46. Spiraxis pauperculus C. B. Ad. Adams coll. H. W., 



del 37 



47. Spiraxis perstriatus Pils. Adams coll. H. W., del. 40 



48. Spiraxis perstriatus Pils. Acad. coll. H. W., del. . . 40 



49. Spiraxis aberrans Pfr. Conchylien Cabinet 36 



50. Spiraxis pauperculus C. B. Ad. Long Mt, Acad. 



coll. H. W., del 37 



51. Spiraxis pauperculus C. B. Ad. Acad. coll. H. W., 



del 37 



52. Spiraxis parallelus Pils. Acad. coll. H. W., del... 41 



53. Spiraxis parallelus Pils., var. Acad. coll. H. W., 



del 41 



PLATE 5. 



1, 2. Obeliscus dunkeri Pfr. Acad. coll 347 



3. Obeliscus dunkeri Pfr. Conch. Cab 347 



4, 5. Obeliscus turritellatus Dh. Fer., Hist 348 



6. Obeliscus toussaintianus Pils. Acad. coll 349 



