REFERENCE TO PLATES. 



VOL XIII. 



PLATE 1. 



FIGURE. PAGE. 



1, 2. Acmsea viridula Lra. Conch. Icon., . . .32 



3-6. Acmsea viridula Lm. Original, . . . .32 



7-9. Acmsea spectrum Rv. Original, . . . .14 



10. Scurria zebrina Less. Original, . . . .62 



11. Scurria zebrina Less. Conch. Icon., . . . .62 



PLATE 2. 



12-17. Acmsea concinna Lischke. Jap. Meeres-Conchyl., . 44 



18-20. Acmsea heroldi Dkr. Moll. Jap., . . .45 

 21-24. Acmsea schrenckii Lischke. Jap. Meeres-Conchyl., 44 



25-28. Acmsea persona Esch. Original, . . . .15 



29. Acmsea persona Esch. (P. oregona Rye.). Conch. Icon., 15 



30, 31. Acmsea persona Esch. var. Original, . . .15 

 32, 33. Acmsea patina Esch. (P. nuttalliana Rv.). C. Icon., 11 

 34-37. Acmsea patina Esch. Original, . . . .11 



PLATE 3. 



38-40. Acmsea scabra var. limatula Cpr. Original, . 14 



41. Acmsea scab ra Rv. Conch. Icon., . . . .13 



42-44. Acmsea scabra Rv. Original, . . . '13 



45-46. Acmsea scabra var. limatula. Original, . . 14 



47-49. Acmsea scabra var. morchii Dall. Original, . 14 



50. Acmsea mitra Esch. Original, . . . . .24 



51, 52. Acmsea persona Esch. typical. Mai. Bl., . . 15 

 53, 54. Acmsea persona var. digitalis Esch. Mai. Bl., . 16 



55, 56. Acmsea persona var. digitalis Esch. Original, . 16 



PLATE 4. 



56, 57. Acmsea cubeusis Rv. (rnelanolenca Rv.). C. Icon., 41 

 58-60. Acmsea cubensis Rv. typical. Original, . 41 

 61 > 62. Acmsea cubensis var. Original, ... 42 



63. Acmsea cubensis v. simplex Pils. Original, . 42 



64, 65. Acmsea cubensis v. simplex (leucopleura Rv.). C. Ic. 42 

 66-68. Acmsea cubensis v. simplex Pils. Original, . 42 

 69, 70. Acnuea cubensis Rv. Conch. Icon., . . 41 



(173) 



