714 GASTROPODA. [Pulinonati. 



sinus. ColxmcUa short, arcuate. Inner lip not thickened nor re- 

 flexed ; parietal wall with a thin shining glaze. Umbilicus wide, per- 

 spective, about one-third of the greater diameter. 



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



Jaw thin, arcuate, finely vertically striated. 



Radula having the formula 10 + 4+1 + 4+10. Central tooth tri- 

 cuspid. with a long rnesocone. Laterals similar to the central tooth. 

 Marginals broad, with 3 long cutting-points. 



Type in my collection. 



Hob. Hooker Valley (type) ; Riccarton Bush (H. S.). 



14. Endodonta buccinella, Reeve, 1852. Plate 28, figs. 5, a, b. 



Helix buccinella, Reeve, Conch. Icon., vii, pi. 133, f. 821. Ckaropa bucci- 

 nella, Reeve : Hedley and Suter, P.L.S. N.S.\Y. (2), vii, 654. Endodonta 

 (Charopa) buccinella, Reeve : Suter, J. tie Conch., xli, 262. Helix 

 gamma, Pfeiffer, P.Z.S., 1852 (1S54), 57 ; M.H. Viv., iii, 100. Patula 

 (Charopa) gamma, Pfr., Nomencl. Hel. Viv., 98. Helix (Charopa) gamma, 

 Pfr. : Hector, Cat. Land Moll. X.Z., 12. Patula gamma, Pfr. : Hutton, 

 M.N.Z.M., 8. Helix (Patula) gamma, Pfr. : Tryon, Man. Conch. (2), 

 iii, 23, pi. 3, f. 11. Patula sylvia, Hutton, N.Z.J.S., i, 1883. 476 ; 

 T.X.Z.I., xvi, 175, 193. P. (Charopa) sylvia, Hutt. : Pilsbry, Man. 

 Conch. (2), viii, 98. Charopa tau, Pfeiffer : Hedley and Suter. P.L.S. 

 N.S.W. (2), vii, 657 ; Suter, I.e., viii, 499 ; not of Pfeiffer. 



Shell very small, depressed, umbilicated, thin, closely striated, 

 horny, clouded with rufous. $cufy</ v/r : The protoconch is micro- 

 scopically radially finely striate ; on the following whorls the riblets 

 are stronger and more distant, about 10 per millimetre, protractive 

 at the suture, slightly flexuous on the periphery and base ; interstices 

 with fine growth-lines, decussated by microscopic spiral lirae, present 

 on all whorls. Colour pale-horny with fulvous irregular streaks and 

 zigzag lines, 'more crowded and sometimes tessellating on the base. 

 Epidermis thin, diaphanous, very slightly shining. Spire little raised, 

 very slightly convex. Protoconch of 1-| convex turns. Whorls 5, 

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

 impressed. Aperture sub vertical, rottmdly lunate. Peristome simple 

 sharp, retracting and forming a distinct sinus at the suture, margins 

 converging. Columella short, arcuate. The inner lip not reflexed ; 

 parietal wall with a very thin shining callosity. Umbilicus wide, 

 perspective, about one-third of the greater diameter. 



Diameter, 3 mm. ; height. 1-3 mm. 



Dentition Suter, T.N.Z.L, xxiv, 293, pi. 21, f. 24, 25; Man. 

 Conch. (2), ix, pi. 9. f. 20, 21. 



Jaw thin, slightly arcuate, not tapering, with strong vertical dis- 

 tant striif. 



Radula with the formula 80x9 + 5+1 + 5+9. Central tooth tri- 

 cuspid, the median cusp long. First laterals similar, the outer ones 

 with a longer mesocone, and the entocone larger than the ectocone. 

 Marginals with 3 to 4 cutting-points. 



Type in the British Museum. 



