118 PULMONATA. 



Helix imizonalis, Encycl. Meth. t. 462. f. 6 ! 



(Helicella) Fe'r. Pr. 241 ; Hist. t. 91. f. 4 ! ! 

 Nanina monozonalis, Grray, Proc.Zool. Soc. 1834, p. 59. 



Beck, Ind. 3. n. 6. 



Alb. 61 (Rj'ssota). 

 Zonites imizonalis, Swains. Malac. 331. 



/3? With two broad reddish-brown bands. — P/r. Ic. t. 14/. 

 f. 14. 

 Hab. Amboina. 



121. Nanina distincta. B.M. 

 Shell umbilicate, semiglobose, rather turbinate, solid, faintly 



striated, minutely foveolate above, fulvous flesh-coloured ; spire 

 broadly conoidal, rather blunt; whorls five and a half, mode- 

 rately convex, the last marked with a white peripherical band, 

 scarcely descending anteriorly, convex beneath, compressed and 

 white round the umbilicus, which is narrow and open ; aperture 

 little oblique, lunate-roundish ; peristome simple, blunt, colu- 

 mellar margin rather thickened, reflected above into a mode- 

 rate lamina. Height 32, greatest breadth 56, least breadth 49 

 mill. {Pfr.) 



Helix distincta, Pfr. in Z.f. M. 1850, p. 69; Ic. n. 863. t. 134. 

 f. 1, 2; Mon. Suppl. 81. 

 Reeve, n. 465. t. 86. 

 Hab. Moluccas. 



122. Nanina citrina. B M. 

 Shell perforate, conoidally depressed, rather solid, very faintly 



striated, smooth, shining, yellow, reddish, white, cinnamon- 

 coloured or violaceous, ^\■ith reddish-brown, white or black 

 bands; spire conoidal, rather blunt; suture white-bordered; 

 whorls five, rather convex, enlarging regularly, the last rounded, 

 scarcely more convex beneath ; aperture oblique, roundish- 

 hmate ; peristome simple, upper margin descending immediately 

 from the point of its insertion; columellar margin dechvous, 

 nearly rectilinear. Height 22, greatest breadth 39, least breadth 

 33 mill. Breadth of the aperture to its height=10 : 9. iPfr.) 



Animal. — Mantle not produced behind. — Voy. Astrol. t. 2. 

 f. 1, 2 = Gray, Fig. Moll. t. . f . . 



Helix citrina, Linn. Syst. ed. 10. p. 771 ; ed. 12. n. 679. p. 1245. 

 Quoy Sf Gaim. t. 11. f. 1,4. 

 Born, Mus. 377- t. 13. f. 14, 15 ; t. 15. f. 1-10. 

 Chemn. ix. pt. 2. 130. t. 131. f. 1167 11/5. 

 Lam. 44. p. 77 ; ed. Desk. p. 45. 



