272 



REFERENCE TO PLATES. 



FIGURK.. 



6-8. Plectotropis mataierisis Nevill. Yarkland Exp. f. 7- 

 9, 



9-12. Plectotropis barbosella Heude. Hist. Nat. Emp. 

 Chin, ii, t. 16, f. 3, .... . 



PLATE 13. 



13. Aegista typinsana (= oculus Pfr.) Reeve, Helix, f. 421, 



14. Aegista chinensis Phil. Ibid. f. 427, .... 



15. Aegista vermis Rve. Ibid. f. 424, . . . . 

 16-18. Aegista chinensis Heude. ( pseudochinensis Mart.) 



Hist. Nat. Emp. Chin, ii, t. 15, f. 4, 

 19-21. Aegista furtiva Heude. Ibid, iii, t. 27, f. 13, . 

 22-24. Aegista herpestes Heude. Ibid, ii, t. 15, f. 14, . 

 25. Aegista oldhami Bens. Conch. Ind. t. 15, f. 7, 

 26-28. Aegista accrescens Heude. Hist. Nat. Emp. Chin, ii, 



t. 15, f. 2, 



29-31. Aegista friedeliaua Mart. Preuss. Exped. t. 14, f. 10, 



32. Aegista circulus Pfr. Reeve, Iconica f. 440, b, 



33. Plectotropis scepasma Pfr. Ibid. f. 1296, 



34. 35. Aegista alphonsi Desh. Nouv. Arch. Mus. ix, Bull., 



t. 2, f. 22, 23, 



36, 37. Aegista catostoma Blanf. Conch, fnd. t. 56, f. 2, 3, 

 38-40. Aegista gottschei Mlldff. Jahrb. Mai. Gesell. t. 2, f. 



3,1887, . 



41-43. Aegista initialis Heude. Hist. Nat. Emp. Chin, ii, t. 



15, f. 3, 



44. Aegista platyomphala Mlldff. Jahrb. Mai. Gesell. t. 11, 



f. 19, 1885, . . . f . . . . . 



45-47. Aegista aubryana Heude. Hist. Nat. Emp. Chin, ii, 



t. 20, f. 19, / . 

 48. Plectotropis hupensis Gredler. Jahrb. Mai. Gesell. t. 6, 



f. 1, 1885, 



49-51. Plectotropis perplanata Nevill. Jour. Asiat. Soc. 



Beng. t. 5, f. 21, 1881, 



PLATE 14. 



52-54. Trachia Penangensis Strl. Jour. Asiat. Soc. Beng. 



xlii, t. 3, f. 1, 



55-57. Trachia propenqua Pfr. Novit. Conch, iii, t. 107, f. 



15-17, 



58. Trachia asperella Pfr. Conch. Icon. f. 752, . 



59, 60. Trachia helferi Bens. Conch. Ind. t. 29, f. 8, 9, 

 61, 62. Trachia contracta Hutton. Ibid. t. 55,. f. 8, 9, 



63, 64. Trachia cyclostomata Guill. Cox. Monog. Austr. L. 



Shells, t. 10, f. 12, . . . . ' . 

 65, 66. Trachia ruginosa Fer. Conch. Ind. t. 85, f. 2, 3, 

 67. Trachia crassicostata Bens. Ibid. t. 50, f. 10, 

 68 69. Trachia fallaciosa Fer. Ibid. t. 85, f. 8, 9, 



