2 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 Mill. 
31. Melania herklotzi Petit. 
32. Faunus ater L. 
33. Ampullaria ampullacea L. 
34. Pythia scarabeus L. 
35. Melampus fasciatus Dh. 
36. Cerithidea cornea A. Ad. 
37. Navicella tessellata Lam. 
38. Batissa sphericula Prime. 
DESCRIPTIONS OF NEW SPECIES. 
Nanina (Hemiplecta) marangensis n.sp. PI. I, fig. 9, 10. 
Shell thin, narrowly umbilicated, 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 NV. naninoides Bens. 
Sitala carinifera Stol. var. 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 single raised line, moderately umbili- 
cated. The largest specimen shows six whorls, the others but five,. 
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. 
Trochomorpha 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- 
