HELIX-CHAROPA. 103 



South Island, N. Z. at White Horse Hill, Hooker Valley. 



Named in honor of Captain Thomas Broun, of Karaka, Drury. 

 This shell is closely allied to Pat. sterkiana, and has the same fine 

 ribs, but may at once be distinguished from it by its smaller size, 

 the different markings, and the somewhat different course the ribs 

 take. 



P. brouni SUT., Tr. N. Z. Inst. xxiii, p. 86, t. 16, f. 4, a, b (shell), 

 f. F. G, (jaw and dentition.) 



P. SERPENTINULA Suter. PI. 19, figs. 34, 35, 36. 



Shell small, subdiscoidal, umbilicated, pale horny, with regular 

 streaks and dots of rufous ; not shining, thin, transparent ; with 

 sharp, close-set ribs, arcuated and directed forwards on the upper 

 surface, sinuated at the periphery and straight beneath ; about 38 

 in the tenth of an inch (15 per mill.) Spire scarcely elevated. 

 Whorls 5, rather narrow, regularly increasing, slightly rounded, 

 the last not descending. Suture deep. Aperture subvertical, 

 rotund ly lunar, very little excavated 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. Diam. 2*5. height 1*25 mill. (Sut.) 

 South Island, New Zealand at White Horse Hill, Hooker Valley. 



P. serpentinula SUT., Tr. N. Z. Inst. xxiii, p. 87, t. 16, f. 5, a, b 

 (shell), f. H, J (jaw and dentition). 



This shell is near Paiula sterkiana and P. brouni, but the ribs 

 are more distant. It is finer ribbed than Patula infeeta. 



P. EREMITA Suter. PL 19, figs. 37, 38, 39. 



Shell very minute, subdiscoidal, umbilicated, pale horny with 

 faint broad streaks of darker horny, silky, fragile, transparent ; with 

 fine and numerous ribs, slightly arcuated and directed forwards on 

 the upper surface, straight on the side and beneath ; about 70 in the 

 tenth of an inch (28 per mm.). Spire minute. Whorls 4^, nar- 

 rowly 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, arcuate, not reflected. Umbilicus broad, perspective, 

 one-third of the diameter. Diam. 2, height 0'75 mill. (Sut.^) 



South Island of New Zealand, at White Horse Hill, Hooker Valley. 



