344 



EXPLANATION OF PLATES. 



54, 55. Tonicia schrammi Shuttle w. Pilsbry del., . . 205 



56, Tonicia schrammi Shuttlew. Journ de Conch., . . 205 



PLATE 44. 



57, 60. Chsetopleura watsoni Sowb. Conch. Icon., See appendix. 



58, 59. Chsetopleura watsoni Sowb. Conch. 111., See appendix. 



61. Chsetopleura castanea Q. Voy. Astrol., . See appendix. 



62. Chsetopleura fulva Wood. Ross, del., . . See appendix. 



63. Chsetopleura fulva Wood. Conch. Icon., . See appendix. 



64. Chsetopleura fulva Wood. Pilsbry del., . . See appendix. 



65. 67. Tonicia rubridens Pils. Pilsbry del., . . .202 



66. Tonicia rubridens Pils. Ross del., 202 



68. Craspedochiton laqueatus Sowb. Conch. Icon., . . 285 



PLATE 45. 



69, 70. Tonicia crenulata Sowb. Conch. Icon., . . .195 

 71, 72. Tonicia crenulata Sowb. Ross del., .... 195 



73. Chiton rubicundus Costa. Catal., 182 



74,75. Chiton pulchellus Phil. (=rubicundus Costa). Enum., 182 

 76, 77. Acanthopleura borbonica Dh. Pilsbry del., . . 230 

 78, 79. Acanthopleura borbonica Dh. Moll. Reun., . . 230 

 80, 81, 83, 84. Acanthopleura spinosa Brug. (valves i, ii, viii). 



Emerton del., .220 



82, 87. Acanthopleura spinosa Brug. (valve iv). Pilsbry del., 220 



85. Acanthopleura spinosa Brug. Conch. Icon., . . . 220 



86. Acanthopleura spinosa Brug. (girdle spines). Emerton 



del., .220 



PLATE 46. 



88. Eudoxochiton nobilis Gray (type). Erebus & Terror, . 193 



89, 90. Eudoxochiton nobilis Gray (valve vii). Pilsbry del., 193 

 91. Eudoxochiton nobilis Gray (interior). Emerton del., . 193 

 92-94. Eudoxochiton nobilis Gray (valve viii). Pilsbry del., 193 



95. Eudoxochiton nobilis Gray. Pilsbry del., . . .193 



96, 100. Eudoxochiton huttoni Pils. (valve vii). Pilsbry del., 194 



97. Eudoxochiton huttorii Pils. Ross del., .... 194 



98, 99. Eudoxochiton huttoni Pils. (valve viii). Pilsbry del., 194 

 1-5. Chiton miles Cpr. Emerton del., . . . .188 



PLATE 47. 



6-9, 11-14. Acanthopleura echinatum Barnes. Emerton 



del., 218 



10. Acanthopleura echinatum Barnes. Zool. Journ., . . 218 

 15-17. Acanthopleura echinatum (young). Emerton del., . 218 

 18-20. Acanthopleura brevispinosa Sowb. Emerton del., . 231 

 21. Acanthopleura brevispinosa Sowb. Ross del., . . 231 



