696 GASTROPODA. [Pulmonata. 



10. Endodonta wairarapa, .Suter, 1890. Plate 27, fig. 12, a-c. 



Helix wairarapa, Suter, T.N.Z.I., xxii, 1889 (1890), 222, pi. 14, f. 2, a-c. 

 Patula (Maoriana) wairarapa, Sut. : Pilsbry, Man. Conch. (2) viii, 88, 

 pi. 24, f. 30-39. Endodonta (Ptychndon) wairarapa, Sut. : Hedley and 

 Suter, P.L.S. N.S.W. (2), vii, 652 ; Suter, J. de Conch., xli, 259. 



Shell minute, suborbicular, umbilicate, thin and fragile, faintly 

 shining, radially ribbed. Sculpture of the post-nuclear whorls con- 

 sisting of fine close and flexuous riblets, about 15 per millimetre, the 

 interstices with minute growth-lines. Colour light horny-brown with 

 brown radial streaks of unequal width. Spire but little elevated, 

 flattish. Protoconch of If whorls, which are convex and smooth. 

 Whorls 6, slowly increasing, narrow, convex, periphery and base 

 rounded. Suture well impressed. .Ifurtiirr slightly oblique, roundly 

 lunate, with 16 laminae within- 5 on the parietal wall, the four lower 

 ones close together, the upper one at some distance from the others, 

 .ill of the same form, thread-like ; 1 conical tooth on the columellar 

 lip, a little higher than the other lamellae ; 10 long fine equidistant 

 lamellae on the outer wall. Peristome straight, acute, regularly arched. 

 Columella short, oblique, arcuate ; lip not reflexed above. Umbilicus 

 wide, deep, perspective, about one-third of the greatest diameter. 



Diameter, 1-75 mm. ; height, 1 mm. (type). 



Dentition (Suter, T.N.Z.I., xxiv, 298, pi. 23, f. 45). Radula having 

 the formula 100 x6+4+l + 4+6; teeth normal. 



Type in my collection. 



Hob. North Island : Forty-mile Bush, type (H. 8.) ; Waimarama 

 (A. Hamilton). South Island : Kenepuru (McMahon) ; Happy Valley, 

 Stonyhurst (F. Suter). 



Subgen. 3. PHENACHAROPA, Pilsbry, 1893. 



Phenacharopa, Pilsbry, Man. Conch. (2), ix, 29. Type : Pupa novo- 

 sedandica, Pfr. Pupa of authors ; not of Bolten, nor of Drapamaud. 

 Tesseraria, Bottger, 1881 ; not of Hackel, 1880. 



Animal having long eye-peduncles and short tentacles ; foot with ti 

 peripodial groove, and there is no mucous caudal pore present. 



Jaw arcuate, vertically striated. 



Radula with tricuspid central and lateral teeth, marginals tri- 

 and quadri-cuspid. 



Shell pupiform, cylindrical, the height about double the diameter ; 

 apex obtusely rounded ; base slightly wider, convex, and narrowly 

 perforated ; surface ribbed and maculated as in the subgenus Charopa ; 

 aperture subvertical, higher than wide, toothless ; peristome simple, 

 thin, the columellar margin dilated. 



Distribution. New Zealand. 



