REFERENCE TO PLATES. 415 



PLATE 20. 

 FIGURE. PAGE. 



24-26. Action austrinus Wats. Chall. Rep., . . .140 

 27. 28. Action amabilis Wats. Chall. Rep , . . .154 

 29, 30. Actseon turritus Wats. Chall. Rep 157 



31. Actseon incisus Dal). Blake Rep., 160 



32. Actseon danaida Dall. Blake Rep., . . . .160 



33. Actseon melampoides Dall. Blake Rep., . . .158 



34. Actseon incisus Dall. Blake Rep., . . . . .160 



35. Actseon delicatus Dall. Blake Rep., . . . .162 



36. Actseon perforatus Dall. Blake Rep., .... 159 



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 Grn. C. Icon., . . 143 



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



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

 Fig. above 51. Solidula funiata 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.-Conch., . . .137 



57. Solidula nitidula Lam. C. Icon 144 



58, 59. Actseon flammeus Gmel. C. Icon. 151 



60, 61. Solidula intermedia Aug. P. Z. S., . . . . 145 



.62. Solidula nivea Ang. P. Z. S 146 



63, 64. Actseon 'virgatus Rv. C. Icon., ..... 151 



65. Solidula suturalis Ad. C. Icon., . . . . 1 39, 413 



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



t 



PLATE 21. 



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



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



3. Retusa tormita Wats. Chall. Rep., 209 



4. Retusa amphizostus Wats. Chall. Rep., .... 224 



5. Retusa oryctus Wats. Chall. Rep., 227 



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



7. Cylichna vortex Dall. Blake Rep., 295 



8. Retusa frielei Dall. Blake Rep., 219 



9. 10. Retusa siraillima Wats. Chall. Rep., . . .226 

 11, 12. Retusa truncatula Brug. Moll. Reg. Arct., . . 205 



