692 GASTROPODA. [Pvlnumata. 



Diameter, 2-25 mm. ; height, 1-1-2 mm. 



Dentition. Suter, T.N.Z.I., xxiv, 299, pi. 23, f. 46. 47. 



Jaw typical, with a few distant vertical stria;. 



Radula having the formula 100x10+6+1 + 6+10; the teeth 

 normal. 



Type in my collection . 



Hob. North Island : Whangarei ; Mount Wellington lava-fields ; 

 Ohaupo (Musson) ; Taranaki ; Forty-mile Bush, type (H. S.). South 

 Island : Kenepuru (McMahon). 



4. Endodonta hunuaensis, Suter, 1894. Plate 27, fig. 7. a. h. 



Ptychodon hunuaensis, Sut., P.L.8. N.S.VV. (2), viii, 1894, 494, pi. 23, f. 8 

 (erroneously " hunnaensis "). 



Shell minute, subdiscoidal, umbilieated, nor shining, thin and 

 fragile, semitransparent. Sculpture consisting of radiate fine nearly 

 straight riblets, about 15 per millimetre, much closer and finer on the 

 protoconch ; they are slightly directed forward ; the interstices with 

 numerous minute growth-lines. Colour pale - horny, with distant 

 irregular broad streaks of rufous. Spire short, fiat. Protoconch of 

 1J convex volutions. Whorls 5, narrow, regularly increasing, slightly 

 rounded, the last descending considerably below the level of the pen- 

 ultimate whorl ; periphery and base convex. Suture impressed. Aper- 

 ture oblique, rotundly lunar, having within 12 laminae a stout ernar- 

 ginate lamella at the middle of the parietal wall, and 2 more slender 

 simple and equally spaced lamellae below it ; from the columellar lip 

 2 large blunt teeth, on a common base, extend rather far into the 

 aperture ; outer wall with 7 somewhat irregular and rather blunt 

 teeth. Pcristomr straight, acute, regularly arched, margins con- 

 vergent. Columella short, oblique, the lip not reflexed. Umbilicus 

 wide, perspective, occupying nearly one-third of the greatest diameter. 



Diameter, 2 mm. ; height, 1 mm. 



Animal unknown. 



Type in my collection. 



Hob. North Island : Auckland (H. S.) ; Wade ; Hunua Range, 

 type (Major Broun) ; Mount Taupiri (Urquhart) ; Waimarama (A. 

 Hamilton) ; Dannevirke ; Seventy-mile Bush ; Rusthall. Wanganui 

 (R. Murdoch). South Island : Kenepuru (McMahon). 



5. Endodonta leiodon, Hutton, 1883 (cm.). Plate 9, tig. 16, a- c. 



Strobilt hiodiis, Hutt., T.N.Z.L, xv, 1882 (1883), 135. S. leioda, Hutt.. 

 T. N.Z.I., xvi, 195. Patula (Maoriana) leioda, Hutt. : Pilsbry, Man. 

 Conch. (2), viii, 87, pi. 24, f. 32-35. Endodonta (Ptychodon) leioda, Hutt. : 

 Medley and Suter, P.L.S. N.S.W. (2). vii, <>f>2 : Suter, .T. do Conch., 

 xli, 259. 



Shell minute, depressed globose, urnbihcated, ribbed, thin, not 

 shining. Sculpture consisting of numerous oblique narrow radiate 



