! 



REFERENCE TO PLATES 



PLATE 1. 



FIGURE. PAC1 . 



1. Katharina tunicata Wood After Reeve, . . .41 

 J. Katharina Umicata Wood ; foot. Emerton del., 



3,4. Katharina tunicata Wood ; head valve. Kmcrton <i< ]., 41 



5. Katharina tunicata Wood ; median valve. I'il.-bt \ ! !., 41 

 6,7. Katharina tunicata Wood; median valve. I in rton 



del 41 



8-11. Katharina tunicata Wood; tail valve. Emerton del. 41 

 12, 13. Acanthochites formosus Rv. After Reeve, 



14-22. Acanthochites carpenter! Pils. Emerton del., . . 35 



23-26. Acanthochites speciosus Ad. & Ang. E. A. Smith del. 32 



27-35. Acanthochites involutus Cpr. Emerton del., . . 35 



PLATE 2. 



36-44. Acanthochites porrecta Cpr. (=defilippii T.-C.). 



Emerton del., . . . . . . . .11) 



45-48. Acanthochites defilippii Tap.-Can. Viag. Magenta, . 19 



49. Acanthochites hirudiniformis Sowb. (?) Emerton del., . 27 



50. Acanthochites rubrolineatus Lisch. Jap. Meeres-Conch., 18 



51. 52. Acanthochites scutiger Rve. After Reeve, . . 20 

 53, 54. Acanthochites circellatus Rve. After Reeve, . . 20 



55. Acanthochites asbestoides Cpr. Zool. " Alert," . . 17 



56. Acanthochites hirudiniformis Sowb. Conch. Illustr. . 27 



PLATE 3. 



57. 58. Acanthochites raonticularis Q. & G. (= porosus). 



Voy. Astrol., .36 



59-62. Acanthochites porosus Burr. Emerton del., 



63, 64. Acanthochites floridnnus Dall. Emerton del., 



65, 66. Acanthochites bouvieri Roch. Nouv. Arch 13 



67-71. Acanthochites violaccus Q. & G. Emerton & Pils- 



bry del., 



72, 73. Acanthochites porphyreticua Rv. (=violaceu*). Con- 

 ch. Icon., . .... 

 74. Acanthochites costatus Ad. & Ang. Zool. " Alert," 



PLATE 4. 



77. Acanthochites fascicularis L. After Forbes & Hanley, . 



78. Acanthochites fascicularis, sculpture x (50. Pilsbry del., 



(117) 



