SuTEE. — On N.Z. Land and Fresh-water Shells. 87 



Patula serpentinula, u. sp. Plate XVI., fig. 5, ((, b, H, J. 



Shell small, subdiscoidal, umbilicated, pale-horny with 

 regular streaks and dots of rufous; not shining, thin, trans- 

 parent ; with sharp close-set ribs, arcuated, and directed for- 

 wards on the surface, sinuated at the periphery and straight 

 beneath ; about 38 in the tenth of an inch (15 per mm.). Spire 

 scarcely elevated. Whorls 5, rather narrow, regularly in- 

 creasing, slightly rounded, the last not descending. Suture 

 deep. Aperture subvertical, rotundly lunar, very little ex- 

 cavated by the penultimate whorl. Peristome simple, straight, 

 the upper margin slightly advancing, margins convergent. 

 Columellar margin short, arcuated, not reflexed. Umbilicus 

 large, perspective, showing all the whorls, one-third of the 

 diameter. 



Diameter, 0-lin. (2-5mm.) ; height, 005in. (l-25mm.). 



Hab. Under rotten wood and decaying leaves in the sub- 

 alpine bush. South Island : White Horse Hill, Hooker Valley. 

 (H. S.) 



This shell is near Patula sterhiana and P. brouni, but the 

 ribs are more distant. It is finer ribbed than Patula in- 

 fect a. 



Animal. — Jaw arcuate, faintly striated, very thin, no 

 median projection. 



Dentition: 11 — 1 — 11; laterals, 5. Central tooth rect- 

 angular, not much longer than broad, reflexed portion tri- 

 cuspid, the central cusp long, reaching nearly the posterior 

 margin of the base, all the three cutting-points short. Laterals 

 very much like the central tooth, but almost quadrate. Mar- 

 ginals much broader than long, with three to four cutting- 

 points, of "-hich the two inner ones are stouter and longer ; the 

 last marginal minute, quadrate, unicuspid. 



Patula eremita, u. sp. Plate XVII., fig. 6, a, 6. 



Shell very minute, subdiscoidal, umbilicated, pale-horny 

 with faint broad streaks of darker horny, silky, fragile, trans- 

 parent ; with fine and numerous ribs, slightly arcuated and 

 directed forwards on the surface, straight on the side and 

 beneath : about 70 in the tenth of an inch (28 per mm.). Spire 

 luinute. Whorls 4^, narrowly rolled up, regularly but slowly 

 increasing, rounded", the last not descending. Suture deep. 

 Aperture subvertical, rotundly lunate, but little excavated by 

 the penultimate whorl. Peristome straight, acute, regularly 

 arched, margins convergent. Columellar margin short, 

 arcuated, not reflected. Umbilicus broad, perspective, about 

 one-third of the diameter. 



Diameter, 0-08in. (2mni.) ; height, 003in. (0-75mm.). 



Hah. Under decaying leaves in the subalpine bush. Ex- 



