Endodonta.] GASTROPODA. 727 



Hob. North Island : Waitakerei Range ; Auckland (H. S.) ; 

 Motutapu Island (A. Suter) ; Hunua Range (Major Broun) ; Ohaupo 

 (Musson) ; Ruatahuna (E. Best) ; Seventy-mile Bush ; near Wai- 

 tomo Caves (A. Hamilton) ; Otaki Gorge ; near Wellington. South 

 Island : Mount Somers (W. W. Smith) ; Hooker Valley, type (H. S.) : 

 Akaroa (F. Suter). 



30. Endodonta kenepuruensis, Suter, 1909. Plate 28, figs. 17, a, b. 



Endodonta (Gharopa) Icenepnrmnsis, Sut., P. Mai. S., viii, 1909, 200, pi. 11, 

 f. 23. 



Shell very small, subdiscoidal, moderately umbilicated, radially 

 finely ribbed, thin and fragile. Sculpture of protoconch consisting of 

 about 8 fine somewhat inequidistant spiral lirse ; the succeeding 

 whorls have fine, not very close, flexuous radial riblets, about 12 -13 

 per millimetre ; the interspaces microscopically exceedingly finely 

 reticulated by growth-lines and spiral striae, the latter being much 

 finer and closer together than on the protoconch. Colour white, with a 

 few distant light-brown streaks. Epidermis thin, not shining. Spire 

 flattish, very little elevated. Protoconch of 1J convex volutions. 

 Whorls 4J, regularly increasing, periphery and base rounded. Suture 

 deep. Aperture oblique, lunate. Peristome thin and sharp, regularly 

 arched. Columella short, vertical, arcuate.- Inner lip slightly ex- 

 panded, and forming a thin callous layer on the parietal wall. Um- 

 bilicus moderate, its diameter 0-7 mm., deep and subcylindrical. 



Diameter. Maj., 2-7 mm. ; min., 2-5 mm. ; height, 1-5 mm. 



Animal unknown. 



Type in my collection. 



Hob. South Island : Kenepuru ; one specimen (McMahon). 



31. Endodonta Prestoni, Sykes, 1895. Plate 28, fig. 19. 

 Endodonta (Charopa) Prestoni, Sykes, P. Mai. S., i, 1895, 218, figs, in text. 



Shell minute, depressed, deeply umbilicated, finely costulate, 

 whitish, thin and fragile. Sculpture : Protoconch with distant spiral 

 striae ; the following whorls are finely and closely radially cost ate, 

 40 to 45 per millimetre, the riblets are fine and flexuous ; interstices 

 with growth-lines and microscopic spiral lirae ; looking into the um- 

 bilicus we see spiral strise, which continue up to the mouth, and 

 appear to correspond to the apical strise seen from above. Spire 

 little elevated or quite flat. Protoconch of 1^ convex turns. Whorls 

 4, slowly increasing, convex, periphery and base rounded. Suture 

 impressed. Aperture rotundly lunate. Peristome simple, straight. 

 Columella short, arcuate, not reflexed above. Umbilicus moderately 

 wide, deep, subcylindrical, showing the nucleus, about a quarter of 

 the greatest diameter. 



Diameter, 2 mm. ; height. 1 mm. 



Animal unknown. 



Type in Mr. Sykes's collection. 



