ftXFEBBHO] i" 



I'l \n; 20. 



21 26. A.-ia-mi au.-trinus Wats. Chall. R.-p , . . ,140 

 27,28. Ada-oil amahilis Wats. Chall. Rep. . . ,164 

 29, 30. Acta-on turriuis Wats. Chall. Rp . . . ,157 



31. Aeta'on incisus Dall. Blake Rep., Uln 



: ( ,2. Act;. -on danaida Dall. Blake R.-p Mil) 



33. Aet:ron melampoides Dall. Blake R. p . . . . !.",> 



\ct:r,n incisus Dall. Wake Rep 



Actseon delicatus Dall. Blake Rep. 1'I2 



36. Acteeon perforatus Dall. Blake Rep., .... \~M 



PLATE 20 A. 



37, 38. Solidula solidula L. C, Icon., . . 142 



39. Solidula sulcata Gmel. Specimen, . ... 143 



40, 41. Solidula coccinata Rve. C. Icon., .... 143 

 42, 43. Solidula tessellata Rv. C. Icon, . . . .140 

 44,45. Solidula solidula L. Specimen, . . . .142 

 46, 47. Solidula glabra Rv. = sulcata Gin. C. Icon., . .143 



48. Solidula glabra Rv. = sulcata Gm. C. Icon., . . 143 



49, 50. Solidula cinerea Wats. Chall. Rep., . 140 

 Fig. above 51. Solidula fumata Rv. C. Icon., . . . . 145 



51. Solidula inculpta Rv. C. Icon., 139 



52. Solidula affinis Ad. Chall. Rep., 141 



53. 54. Solidula fratercula Dkr. Ind. Moll. Jap.. . . 138 

 55, 56. Solidula strigosa Gld. Jap. M.-Conoh., . . .137 



57. Solidula nitidula Lam. C. Icon 144 



58, 59. AcUeon flammeus Gmel. C 1 . Icon., . . . .151 

 60, 61. Solidula intermedia Aug. IV /. S 145 



62. Solidula nivea Aug. P. Z. S 14t> 



63, 64. Actseon virgatus Rv. C. Icon., 1"1 



65. Solidula suturalis Ad. C. Icon., . . . 1 W, 41- 



66, 67. Solidula reevei E. A. Sm. C. Icon. . . 413 



PLATE 21. 



1. Retusa leueiis Wats. Chall. Rep., . . 208 



2. Retusa coiuplaiiata Wats. Chall. Rep., . . . .223 

 :). Retusa tornata Wats. Chall. Rej)., . ... 209 



4. Retusa amphi/.ostus Wats. Chall. Rep., .... 221 



5. Retusa oryrtus Wats. Chall. Rep. 227 



6. Retusa famelica Wats. Chall. Rep., . . 225 



7. Cylichna v.rtex Dall. Blake Rep., 295 



8. Retusa frielei Dall. Blake Rep., 21! 



9. 10. Retusa simillima Wats. Chall. L . . .226 

 11, 12. Retusa triincatula Brug. Moll. Reir. Arct, . . 205 



