724 GASTROPODA. [Pulmonata. 



down with a slightly concave sinuation, then regularly arched. Colu- 

 mella short, arcuate. Inner Up slightly thickened, not reflexed ; 

 parietal wall with a shining thin glaze. Umbilicus moderately wide, 

 deep, showing all the whorls, about one-third of the greatest dia- 

 meter. 



Diameter Maj., 4-75 mm. ; min.. 4-2 mm. : height, 2-75 mm. 



Dentition. Mutton, T.N.Z.I., xiv, 150, pi. 3, f. A, L ; pi. 4, f. G : 

 I.e., xvi, 165, pi. 9, f. G. 



Animal like E. coma ; colour white ; eye-peduncles, tentacles, and 

 a stripe down each side of the head purplish-black. 



Jaw slightly arcuate, with the ends attenuated, distantly vertically 

 striate. 



Radula having the formula 13+ 1 + 13 ; about 6 laterals. Marginals 

 with 3 and 2 cutting-points. 



Type in the Canterbury Museum, Christchurch. 



Hob. North Island : Wade ; Auckland ; Thames ; Hunua Range ; 

 Maketu ; Tuhoe-land ; Heretaunga ; Dannevirke ; Toko, near Strat- 

 ford ; Wanganui ; Shannon ; Forty-mile Bush. South Island : Kene- 

 puru ; Lake Coleridge ; Dunedin (type) ; Taieri ; Owaka ; Fortrose ; 

 Preservation Inlet. Stewart Island : Half-moon Bav. 



/ 



Forma albina. 



Perfectly white specimens are in my collection from the Forty- 

 mile Bush, Kenepuru, and Wairoa Gorge, Nelson. 



27. Endodonta variecostata, Suter, 1890. Plate 28, figs. 14, a, b. 



Palula variecostata, Sut., T.N.Z.I., xxii, 1889 (1890), 225, pi. 14, f. 8, a-c. 

 P. (Charopa) variecostata, Sut. : Pilsbry, Man. Conch., (2), viii, 100, 

 pi. 19, f. 19-21. Charopa variecostata, Sut. : Hedley and Suter, P.L.S. 

 N.S.W. (2), vii, 657. Endodonta (Charopa) variecostata, Sut., J. de 

 Conch., xli, 269. 



Shell minute, subdiscoidal, umbilicated. white with faint fulvous 

 streaks, faintly shining, finely costate, semitransparent. Sculpture : 

 Protoconch with very fine radiate strife ; the following whorls with 

 more distant fine riblets, alternately one higher than the next, about , 

 15 per millimetre, protractive on the upper surface, straight on the 

 periphery and base ; the interstices with fine growth-lines and in- 

 distinct microscopic spiral lines. Colour white with faint equidistant 

 fulvous streaks. Spire almost fiat. Pr<>toi-t>nch of 1J convex volutions. 

 Whorls 3f , slowly and regularly increasing, convex, periphery and base 

 rounded. Suture deep. Aperture slightly oblique, rotundly lunate. 

 Peristome thin and sharp, retracted at the suture, and forming a not 

 very deep sinus. Columella vertical, arcuate. Inner lip not reflexed. 

 Umbilicus broad, perspective, about one-third of the greatest diameter. 



Diameter, 1-8 mm. ; height, 1 mm. 



Animal unknown. 



