PULMONATA. 131 



lip simple, with the internal margin rounded. Breadth Vo^h 

 of an inch, axis a little less {Gould). 



Helix calculosa, Gould, Exped. Sh. 1851, p. 48. f. 63. 



Pfr. Mon. Suppl. 41. 

 Hab. Tahiti. 



159. Nanina Stoddarti. B.M. 



Shell imperforate, depressedly tvu-binate, solid, slightly rugose, 

 uitidulous, brunneous and pale banded, or yellowish with darker 

 bands ; spire dejn-essedly conic ; whorls five, nearly level, the 

 last more convex, angular in the middle, slightly convex at the 

 base ; columella very short, slightly thickened, entering ; aper- 

 ture lunar ; peristome simple, acute. Lat. maj. 15, min. 14, 

 alt. 10 mill. 



Helix Stoddarti, Gray, Proc. Zool. Soc. 1834, p. 65. 



Midler, Synops. p. 8. 



Pfr. Mon. Helic. i. 36. 

 Hab. Phillip Island, Pacific. 



160. Nanina Campbellii. B.M. 



Shell imperforate, orbiculate, convex on each side, closely 

 wrinkled above, slightly decussated with spiral striae, pale brun- 

 neous, ornamented above the margin with one broad pale band ; 

 spire conoidal, obtuse ; whorls four and a half, nearly level, the 

 last angulated in the middle, nearly smooth beneath ; columella 

 short, oblique, slightly thickened ; aperture angularly-lunar ; 

 peristome thin, acute. Lat. maj. 19, min. 17, alt. 12 mill. 



Helix Campbellii, Gray, Proc. Zool. Soc. 1834, p. 65. 

 Midler, Syii. p. 7- 

 Pfr. Mon. Helic. i. 35. 



Hab. Phillip Island, Pacific. 



161. Nanina EX^EauATA. 



Shell imperforate, discoidal, thin, smooth, shining, pellucid, 

 reddish-brown horn-coloured ; spire flat ; suture scarcely im- 

 pressed, bordered ; whorls six, flat, enlarging slowly, the last 

 obtusely angular at its upper periphery, rather flat beneath and 

 impressed in the centre ; aperture per])endicular, narrowly 

 lunate ; peristome simple, sharp, with the basal margin almost 

 rectilinear. Height 3, greatest breadth 7, least breadth 6 mill. 

 {Pfr-) 



