SuTEE. — On K.Z. Land and Fresh-n-ater Shells. 225 



there is one-half to one whorl less, and the diameter of the 

 shell is smaller. 



Patula colemoi, n. sp. Plate XIV., fig. 7, a, b. 



Shell discoidal, yellowish-grey, zigzag streaks of dark- 

 brown flowing sometimes together, rather solid, transparent, 

 faintly shining ; with strong plaits, directed forwards on the 

 sm-face, slightly nndulating on the side ; the interstices striated 

 with growth-lines. Eibs about 20 in the tenth of an inch 

 (8 per mm.). Spire flat. Whorls 5, narrow, slowly increasing, 

 rounded, the last not descending, tapering. Suture deep. 

 Aperture slightly oblique, rotundl}' lunar, little excavated by 

 the penultimate whorl, margins convergent. Umbilicus broad, 

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

 diameter. 



Diameter, 0-16in. (4:-2omm.) ; height, 0-06in. (2-25mm.). 



Hab. Under rotten wood and dead leaves in the bush. 

 Rather scarce. North Island : Fortv-mile Bush ; Hastw"ell. 



Named in honour of the Rev. William Colenso, F.R.S., 

 the discoverer of the Uiiio tcaikarensc. 



This species is near Pat. infccta, Reeve, but differs suffi- 

 ciently from it to justify the creation of a new species : the 

 direction of the ribs on the surface is different ; there are only 

 5 whorls, more rapidly increasing, and the last considerably 

 more developed ; the peristome has no callosity ; the um- 

 bilicus is a little narrower ; the diameter is more considerable, 

 the colour darker, the ribs coarser and rather more distant. 



Pahda variecostata, n. sp. Plate XIV., fig. 8, a-c. 



Shell discoidal, small, white with large yellow streaks at 

 regular distances, faintly shining, fragile, transparent, with close 

 fine ribs, directed forwards on the surface and going straight 

 dowm on the side ; there is alternately one much higher than the 

 next ; interstices striated with growth-lines and reticulated with 

 spirals. Eibs about 38 in the tenth of an inch (15 per mm.). 

 Spire flat, only the first whorls a little elevated. Whorls 5, 

 slowly and regularly increasing, swollen, the last not descend- 

 ing. Suture very deep. Aperture slightly oblique, rotundly 

 lunar, but little excavated by the penultimate whorl. Peri- 

 stome straight, acute, somewhat tapering, coluniellar margin 

 nearly vertically descending, upper and lower margin strongly 

 arcuated. Umbilicus broad, perspective, about one-third of 

 the diameter. 



Diameter, OOTin. (l-8mm.), not quite adult; height, 

 0-04:in. (Innn.). 



Hab. Under rotten pieces of wood. Very rare. North 

 Island : Mauriceville. (H. S.) 

 15 



