83S PROCEEDINGS OF THE ACADEMY OF [Dec., 



EXPLANATION OF PLATES LII-LVII. 



PLATE LII, Figs. 1, 2, 3. Clausilia ophidoon Pils. 



Figs. 4, 5. Clausilia tokunoshimana Pils. 



Figs. 6, 7. Clausilia azumai Pils. 



Fig. 8. Clausilia azumai idiopylis Pils. 



Figs. 9, 10, 11. Clausilia nakadai Pils. 



Fig. 12. Clausilia nakadai degenerata Pils. 



Figs. 13, 14. Clausilia okinoerabuensis Pils. 

 PLATE LIII, Figs. 15, 16. Clausilia ophidoon Pils. Clausilium. 



Figs. 17. Clausilia azumai idiopylis Pils. Clausilium. 



Figs. 18, 19. Clausilia nakadai Pils. Clausilium. 



Figs. 20, 21. Clausilia tokunoshimana Pils. Clausilium. 



Fig. 22. Clausilia nakadai degenerata Pils. Clausilium. 



Figs. 23, 24. Clausilia okinoerabuensis Pils. Clausilium. 

 PLATE LTV, Figs. 25, 26, 27, 28. Clausilia nagashimana Pils. 



Figs. 29, 30, 31, 32, 33. Clausilia cymatodes Pils. 



Figs. 34, 35, 36, 37. Clausilia subhickonis Pils. 



Fig. 38. Clausilia subhickonis, variety. 



Fig. 39. Clausilia mikawa Pils., palatal aspect. 



Figs. 40, 41. Clausilia mikawa Pils., type. 

 PLATE LV, Figs. 42, 43, 44. Clausilia asperata Pils. 



Figs. 45, 46. Clausilia ikiensis Pils. 



Figs. 47, 48, 49. Clausilia purissima Pils. 



Fisg. 50, 51. Clausilia ikiensis Pils. Clausilium. 



Fig. 52. Clausilia aurantiaca sakui Pils. 



Figs. 53, 54, 55, 56, 57. Clausilia koshikijimana Pils. 



Figs. 58, 59, 60. Clausilia ventriluna Pils. 



Figs. 61, 62, 63. Clausilia hosayaka Pils. 

 PLATE LVI, Figs. 64, 65, 66, 67. Clausilia hirasei Pils. 



Figs. 68, 69, 70, 71. Clausilia kikaiensis Pils. 



Figs. 72, 73, 74, 75. Clausilia sarissa Pils. 



Figs. 76, 77, 78, 79. Clausilia hyperoptyx Pils. 



Figs. 80, 81, 82, 83, 84. Clausilia yaeyamensis Pils. 



Figs. 85, 86, 87, 88. Clausilia hyperaptyx Pils. 

 PLATE LVII, Figs. 89, 90, 91, 92. Clausilia dcemonorum viva Pils. 



Figs. 93, 94, 95, 96, 97. Clausilia pattalus Pils. 



Figs. 98, 99. Clausilia dcemonorum Pils. These figures are drawn to a 

 smaller scale than the others on the plate. 



Figs. 100, 101, 102, 103, 104. Clausilia thaumatopoma Pils. 



Figs. 105, 106, 107, 108, 109, 110. Clausilia hedleyi Pils. 



Figs. Ill, 112, 113, 114, 115. Clausilia dadoptyx Pils 



