108 PULMONATA. 



convex ; aperture rounded lunar ; peristome simple, columellar 

 margin thickened. Lat. maj. 30, min. 27, alt. 20 mill. 



Helix setigera, Sow. Proc. Zool. Soc. 1841, p. 25. 



Pfr. Symb. ii. 21 ; Mon. Helic. i. 74 ; 7c. i. 218. 



Delessert, Recueil, t. 38. f. 5. 



Ckemn. ed. 2, Helix, n. 187. t. 34. f. 20, 21. 



Chenu, III. Conch, t. 25. f. 5. 



Reeve, n. 135. t. 31. 

 Nanina (Hemiplecta) setigera. Alb. 60. 

 Hub. Luzon. 



96. Nanina Zeus. B.M. 



Shell obliquely perforated, somewhat depressedly-convex, 

 solid, sculptured with oblique wrinkles and raised spiial lines, 

 rufous, ornamented above with white flashing stripes; whorls 

 four and a half, convex, the last convex beneath, angulated in 

 the middle, fm-rowed beneath the keel with deep, concentric 

 grooves ; aperture very oblique, subtrapezoidal, iridescent within ; 

 peristome acute, straight ; columellar margin short, reflected over 

 the perfoi-ation. Lat. maj. 60, min. 47, alt. 30 mill. 



Helix Zeus, Jonas in Proc. Zool. Soc. 1842, p. 188. 



Phil. Icon. i. 3. p. 47. t. 3. f. 1. 



Chemn. ed. 2, Helix, n. 160. t. 26. f. 4-6. 



Fer. Histt. t. 64 A. f. 9. 



Pfr. Mon. Helic. 67 ; Ic. i. 195. 



Desh. Helic. 156. n. 208. t. 64 A. f. 9; t. 100. f. 1, 2. 



Reeve, n. 17- t. 4. 

 Nanina (Ryssota) Zeus, Alb. 62. 



i3. Smaller, with the umbilicus quite closed. Height 22, 

 breadth 43 mill. 

 Hab. PhiUppines. 



97. Nanina Lamarckiana. 



Shell obliquely perforated, depressed, shghtly keeled, thin, 

 irregularly striated and wrinkled, olivaceous-red, ornamented 

 below the keel with a blackish-rufous band, shaded off" below ; 

 suture impressed ; spire scarcely elevated ; whorls four and a 

 half, the highest nearly level, very minutely decussated ; aper- 

 ture widely elliptical, milky or opaline inside ; peristome simple, 

 thin, dilated at the columella, reflected, half covering the oblique 

 umbihcus. Lat. maj. 60, min. 48, alt. 32 mill. 



Helix Lamarckiana, Lea in Tr. Am. Phil. Snc. vii. 461 . 1. 12. f. 1 1 . 

 Chemn. ed. 2, Helix, n. 159. t. 26. f. 1-3. 

 Pfr. Symb. ii. 19; Mon. Helic. i. 67; Ic. i. 194. 



