338 EXPLANATION OF PLATES. 



47,48. Ischnochiton dispar Sowb. Conch. Icon., . . .111 



4'.), 50. Ischnochiton inquinatiu Rve. Conch. Icon., . . 90 



51-55. Ischuochiton adamsii Cpr. Pilsbry del., . . .111 



56, 57, 59. Ischnochiton australis Sow. Pilsbry del., . .144 

 58. Ischnochiton australis Sow. Conch. Icon., . . .144 



PLATE 19. 



60, 61. Ischnochiton tigrinus Krauss. Siidafrik. Moll., . 143 

 62, 63. Ischnochiton tigrinus var. unicolor Pils. Pilsbry 



del., . . 143, 144 



64-66. Ischnochiton hakodadensis Cpr. Pilsbry del., . 147 



67. Ischnochiton novoehollandiit Gray. Pilsbry del., . . 145 



68. Ischnochiton noviehollandite Gray. Ross del., . . 145 



69. Ischuochitou novBedollandirc Gray. Conch. Icon., . . 145 

 70-74. Ischnochiton albrechti Schrenck. Amurl. Moll., . 147 



PLATE 20. 



1-4. Ischnochiton rissoi Payr. Bull. S. Mai. ItaL, . .102 

 5-7. Ischnochiton rissoi Payr. (young). Bull. S. Mai. Ital., 102 



8-10. Ischnochiton rissoi var. meneghinii. Journ. Conch., . 103 



11. Ischnochiton yerburyi Smith. P. Z. S., . . . . 101 



12, 3, 14, 15. Ischnochiton oniscus Kr. Siidaf. Moll, . 100 

 16, 17. Ischnochiton reticulatus Rv. Conch. Icon., . . 101 

 18, 19. Ischnochiton pertusus Rv. Conch. Icon., . . . 103 

 20. Ischnochiton striolatus Gray. Conch. Icon., . . . 105 

 21-24. Ischnochiton striolatus Gray. Ross del., . . . 105 

 25, 26. Ischnochiton caribreorum (Cpr.) Smith (=1. striola- 

 tus). J. Linn. Soc., 107 



PLATE 21. 



27, 28. Ischnochiton pruinosus Gld. U. S. Expl. Exped., . 109 



29-34. Ischnochiton imitator Smith. P. Z. S., 116 



35, 38. Ischnochiton punctulatissimus Sowb. Conch. 111., . 115 



36, 37. Ischnochiton punctulatissimus Sowb. Pilsbry del., .115 



39. Ischnochiton interstinctus Gld. Pilsbry del., . .119 



40, 41. Ischnochiton papillosus Ad. Ross del., ... . 114 

 42-46. Callistochiton shuttleworthianus Pils. Pilsbry del., . 273 

 47, 48. Ischnochiton catenulatus Sowb. Conch. Illust., . 110 



49. Ischnochiton roseus Sowb. Conch. Icon., . . .113 



50. Ischnochiton roseus Sowb. Conch. Illustr., . . .113 



51. 52. Ischuochiton colubrifer Rve. Conch. Icon., . . 95 

 r > '). Ischnochiton rugulatus Sowb. Beechey's Voy., . .110 

 54-56. Ischnochiton rugulatus Sowb. Couch 111., . .110 



57. Ischnochiton rugulatus Sowb. Conch. Icon., . . .110 



