Z THE NAUTILUS. 



20. Melania javanica v. d. B. 



21. Melania rustica Mouss. (?) 



22. Melania perplicata Brot. 



23. Melania sobria Lea. 



24. Melania rudis Lea. 



25. Melania scabra Mull. 



26. Melania tuberculata Mull. 



27. Melania {Tiara'} setosa Sw. 



28. Melania mitra Meuschen. 



29. Melania winteri V. de B. 



30. Melania scabra Miill. 



31. Melania herklotzi Petit. 



32. Faunus ater L. 



33. Ampulla/rid ampullacea L. 



34. Pythia scarabceus L. 



35. Melampus fasciatus Dh. 



36. Cerithidea cornea A. Ad. 



37. Navicella tessellata Lain. 



38. Eatissa sphiericnla Prime. 



DESCRIPTIONS OF NEW SPECIES. 

 Nanina (Hemiplecta) marangensis n.sp. PI. I, fig. 9, 10. 



Shell thin, narrowly urubilicated, obliquely striated above, smooth 

 below; spire obtuse; color light brown; whorls seven, body whorl 

 carinated, outer lip sinuous, expanded. 



Diam. of largest specimen 22 mm. 



This shell resembles H. aceidota Bttg. from Java, but is more 

 acutely keeled and has no band, the substance of the shell is thin- 

 ner, and when adult is larger ; it also resembles N. naninoides Bens. 



Sitala carinifera Stol. vav. marangensis n. var. PI. I, fig. 6. 



The specimens before me differ from the description by Stolicka. 

 It is characterized by having six whorls, base rounded, body whorl 

 bilirate, the others with but a siugle raised line, moderately umbili- 

 cated. The largest specimen shows six whorls, the others but five h 

 base is more rounded than typical forms. It also is close to S. bili- 

 rata W. T. Blanf, except having one whorl less, and not being so 

 openly umbilicated. 



Alt. 4 mm. 



Troohomorpha dohertyi n. sp. PI. I, figs. 7, 8. 



Shell thin, lenticular, whorls six to seven, body whorl acutely 

 keeled, whorls bordered by a yellow band covering the suture, peri- 



