i. \I-I\N \ i [OH OF PLJ 



I'I.M i: 22. 



58, [sohnochiton loDgioymba Q. db Q, K'"- del., . . 87 



[chnochiton loDgicymba Q. <& G. A-tn.l.. . . .87 



<;o-i;;. Isrimorhit.m longicjmbfl o. A GK I'iUi.rv del., . 87 



Kshnoohiton huddoni I'ik I'ilsb.-y del., . 88 

 68,70,71. C. longicrmba Sow. ( I. haddoni I'ik;. Conch. 

 111.. . . ... 



69. C. loiiLrirymhu live. (=1. haddoni I'ils.). Conch. Icon., . 



74. Ischnochiton divi-ri^'ns Rve. Pilsbry del., . . .90 

 75,76. Ischnochiton divergens Rve. Ross del., 



77. Ischnochiton divergens Rve. Conch. Icon., . . .90 



PLATE 23. 



78. 80. Ischnochiton fruticosus Old. U. S. Ex. Exped., . 91 



79. Ischnochiton fruticosus Gld. Pilsbry del., . . .91 

 81, 82. Ischnochiton contractus Rve. Conch. Icon., . . 93 

 83, 84. Ischnochiton decussatus Rve. (=contractus). Conch. 



Icon.. ......... 93, 94 



85. Ischnochiton exiguus Sowb. Conch. Illustr., . . .98 



86. Ischnochiton exiguus Sowb. Conch. Icon., . . .98 



87. 88. Ischnochiton castus (contractus). Conch. Icon., 93, 94 

 89, 90. Ischnochiton sculptus Sowb. Conch. Illustr. . . 92 

 91. Ischnochiton pallidus Rve. Conch. Icon., . . .89 

 92,93. Ischnochiton petaloides Gld. U. S. Exped., . .118 

 94, 95. Ischnochiton carinulatus Rv. Conch. Icon., . . 96 

 96, 97. Ischnochitou pallidulus Rv. Couch. Icon., . . 95 



PLATE 24. 



98, 99. Ischnochiton crispus Rve. Conch. Icon., . . .89 



100, 1-4. Ischnochiton ustulatus Rve. Emerton del., . . 96 



o. Chiton granulosus Frembly. Zool. Journ., . Appendix. 



6. Liolophura curtisiana Smith. ' Alert ' Zool., . . . '24- 



7, 8. Ischnochiton adelaidensis Rve. Conch. Icon., . .136 

 9, 10. Ischnochiton muscarius Rve. Conch. Icon., . .132 



11, 12. Ischnochiton ustulatus Rve. Conch. Icon., . . 96 

 13-15. Ischnochiton tessellatus Q. & G. Astrol., 



16, 17. Ischnochiton arbutum Rve. Conch. Icon., . .139 



18, 19. Ischnochiton milleri Gray. Conch. Icon., . . . 137 

 20-22. Ischnochiton cariosus Cpr. var. subcariosus Pils. 



Pilsbry del., ....... 65, 67 



23. Ischnochiton cariosus Cpr. typical. Emertou del., . . 65 



PLATE 25. 



1-10. Ischnochiton dalli Haddon. Chall. Rep ..... 133 



11-19. Ischnochiton dorsuosus Haddon. Chall. Rep., . . 135 



