Endodonta.} GASTROPODA. 715 



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

 fields ; Howick ; Tuakau ; Hunua Range ; Mount Pirongia ; Toko, 

 near Stratford ; Otaki Gorge ; Ngaputahi, Tuhoe-land ; Ormond- 

 ville ; Forty-mile Bush ; Paekakariki ; Thames ; Hawke's Bay ; 

 Ohaupo. South Island : Kenepuru ; Akaroa ; Dyer's Pass, Lyttelton ; 

 Riccarton Bush ; Bealey ; Oxford ; Greymouth. 



Forma albina. 



A perfectly white specimen from the Hunua Range, found by 

 Major T. Broun, is in my collection. 



Subsp. serpentinula, Suter, 1891. 



Patula serpentinula, Sut., T. N.Z.I., xxiii, 1890 (1891), 87, pi. 16, f. 5, a, b, 

 H, J. P. (Charopa) serpentinula, Sut. : Pilsbry, Man. Conch. (2), viii, 

 103, pi. 19, f. 34-36. Charopa serpentinula, Sut. : Hedley and Suter, 

 P.L.S. N.S.W. (2), vii, 657. Endodonta (Charopa) buccinella serpentinula, 

 Sut., J. de Conch., xli, 263. 



Shell very small, discoidal, umbihcated. Sculpture consisting of 

 close flexuous radial riblets, about 15 per millimetre, much finer and 

 closer together on the protoconch ; interstices with fine growth-lines, 

 the microscopic spiral striae almost obsolete. Colour pale-horny, with 

 regular streaks and dots of rufous. Spire scarcely elevated, flat. 

 Protoconch of 1^ whorls. Whorls 5, narrow, regularly increasing, con- 

 vex ; periphery and base rounded. Sutnre deep. Aperture rotundly 

 lunate. Peristome simple, straight, receding towards the suture, and 

 forming a distinct sinus. Umbilicus large, perspective, slightly more 

 than one-third of the greatest diameter. 



o 



Diameter, 2-5 mm. ; height, 1-25 mm. 



Jaw arcuate, faintly vertically striated, very thin. 



Radula having the formula 6 + 5 + 1 + 5+6. Central and lateral 

 teeth tricuspid, marginals with 3 to 4 cutting-points. 



Type in my collection. 



Hob. South Island : Hooker Valley, type (H. S.) ; Mount Somers 

 (W. W. Smith) ; St. Helens Station, Amuri (F. Suter). 



Remarks. Distinguished from the species chiefly by the smaller 

 size, closer riblets. almost obsolete spiral lines, and a slightly wider 

 umbilicus. 



15. Endodonta caput-spinulae, Reeve. 1852. Plate 28, figs. 6, a, b. 



Helix caput-spinulce, Rve., Conch. Icon., vii, pi. 133, f. 818. Microphysa 

 caput-spinulae, Rve. : Hutton, T.X.Z.I., xvi, 194. Charopa caput- 

 spinulae, Rve. : Hedley and Suter, P.L.S. N.S.W. (2), vii, 659. Endo- 

 donta (Charopa) caput-spinulce, Rve. : Suter, J. de Conch., xli, 26H. 

 Helix epsilon, Pfeiffer, ~M.H. Viv., iii, 97 ; P.Z.S., 1852 (1854), 57 ; 

 Hector, Cat. Land Moll. N.Z., 11. Patula (Charopa) epsilon, Pfr., 

 Nomencl. Hel. Viv., 97. Paryphanta epsilon, Pfr. : Hutton, M.N.Z.M., 

 23. Patula (Microphysa) epsilon, Pfr. : Tryon, Man. Conch. (2), iii, 102, 

 pi. 20, f. 53. 



Shell very small, depressed, umbilicated, thin, pale-horny, obliquely 

 closely ribbed. Sculpture consisting of very thin flexuous radiate 



