REFERENCE TO PLATES, VOL. XVIII. 343 



FIGURE PAGE 



8. Curvella ovata Putz. Soc. Mai. Belg 51 



9. Curvella concentrica Rve. Conch. Icon 51 



10. Curvella decepta Rve. Conch. Icon 49 



11. Curvella decepta Rve. Original 49 



12, 13. Curvella liberiana Pils. Type 50 



14, 15. Curvella concentrica Rve. Original 51 



PLATE 8. 



16. Curvella disparilis Sm. D. Ostafr 54 



17. Curvella kretschmeri Marts. D. Ostafr 55 



18. Curvella conoidea Marts. D. Ostafr 56 



19. Curvella associata Marts. Ann. Mag. N. H 57 



20. Curvella suturalis Marts. D. Ostafr 54 



21. Curvella disparilis Sin. Ann. Mag. N. H 54 



22. Curvella caloglypta M. & P. Ann. Mag. N. H 59 



23. Curvella catarractie M. & P. Ann. Mag. N. H 59 



24. Opeas crawf ordi M. & P. Ann. Mag. N. H 149 



25. 26. Curvella sinulabris Marts. Monatsbericht 53 



27, 28. Curvella croslyi Burnup. P. Malac. Soc 59 



29, 30. Curvella elevata Burnup. P. Malac. Soc 60 



31. Curvella globosa M. & P. Ann. Mag. N. H 61 



32. Curvella sinuosa M. & P. Ann. Mag. N. H 61 



33. 34. Curvella delicata Tayl. Q. Journ. of Conch 58 



35. 'Curvella delicata Tayl. D. Ostafr 58 



36, 37. Curvella stnaminea Burnup. P. Malac. Soc 62 



38, 39. Curvella succinea Burnup. P. Malac. Soc 62 



PLATE 9. 



41. Curvella subviridescens Sm. Ann. Mag. N. H 53 



42, 43. Curvella terrulenta Morel. Journ. de Conch. ... 52 



44. Curvella boettgeri Gredl. Archiv. Naturg 67 



45. Curvella plicifera Bs. Conch. Ind 63 



46. Curvella puta Bs. Conch. Ind 63 



47. Curvella whytei Sm. P. Z. S 57 



48. Curvella pusilla Blf. Conch. Indiea 64 



49. Curvella scrobiculata Blf. Condh. Indiea 64 



50. Curvella nyasana Sm. P. Z. S 56 



51. 52. Curvella munipurensis G.-A. P. Z. S 65 



53-55. Curvella khasiana G.-A. P. Z. S 65 



56, 57. Curvella jousseaumei Morg. Bull. Soc. Zool. Fr. 67 



58. Curvella khasiana G.-A. Conch. Ind 65 



59. Curvella sikkimensis Rve. Conch. Icon 66 



60. Curvella sikkimensis Rve. Conch. Indiea 66 



61-63. Curvella perf orata Mlldff . Bericht Senck 70 



64, 65. Curvella umbilicata Mlldff. Bericht Senck 71 



