Laoma.] GASTROPODA. 736 



Type iu my collection. 



Hob. North Island : Whangarei. 



3. Laoma leimonias, Gray, 1850. Plate 2'.', tig. I. 



Bulimus? (Laoma) leimonias, Gray, P.Z.S., 1849 (1850), Ki7. Helix lei- 

 moniiiK. Gray: Pfeiffer, M.H. Viv., iii, 144; Reeve, (,'onrh. [con., 

 vii, pi. 133, f. 820. H. (Laoma} Iciitinitiitx, Gr.iy : Hector, Cat. Land 

 Moll. N.Z., 16. Patula (Laoma) leimonias, Gray, Noniencl. Hel. Viv., 

 !>7 ; Tryon, Man. Conch. (2), iii, 68, pi. 13, f. 55. Endodonta leimonias, 

 Gray: Hutton, T.N.Z.I., xvi, 195. Lamnn 1< inu.;ix. Gray: Hutton, 

 M.N.Z.M., 21; Hedley and Suter, P.L.S. N.S.W. (2), vii, 646; Suter, 

 J. de Conch., xli, 274 ; Pilsbry, Man. Conch. (2), ix, 9, pi. 1, f. 1. 



Shell very small, turretedly conical, subimperf orated, rather solid, 

 smooth, shining, pellucid, pale-horny with reddish streaks, aperture 

 with 3 long lamellae and 1 or 2 teeth on the columella. Sculpture 

 none, except for microscopic fine oblique growth-lines. Colour pale- 

 horny, with longitudinal fulvous streaks, which, however, are not 

 always present. Spire high, turreted, rather acute. Protoconch of 1| 

 whorls, nucleus convex, rather large. Whorls 7. flat, the last acutely 

 keeled ; base flat. Suture not deep, narrowly margined. Aperture 

 subvertical, depressedly quadrangular, with 3 strong white lamellae con- 

 tinued through the greater part of the whorl 1 on the parietal wall 

 near the outer lip, 1 on the middle of the outer wall, and 1 on the base 

 close to the peripheral angle ; columella with a distinct small tooth 

 at the middle, and very often a smaller one below. Peristome simple, 

 .straight. Outer and basal lip nearly straight. Columella subvertical, 

 lightly arcuate. Inner lip with a very thin callosity, rcflexed and 

 covering the very narrow perforation ; the callus is mostly of a fulvous 

 colour. 



Diameter, 2-3 mm. ; height, 2-7 mm. 



Dentitiw Suter, T.N.Z.I., xxvi, 129, pi. 16, f. 18 ; pi. 17, f. 19. 



Jaw arcuate, composed of 25 separate strongly papillate plaits. 



Radula with the formula 25 + 1 + 25. Central tooth minute, 

 narrow, unicuspid ; laterals bicuspid, with triangular bases ; marginals 

 hroad and and low, bicuspid. 



Type in the British Museum. 



Hob. North Island : Near Auckland, type (Greenwood) ; Howick ; 

 Thames (Adams) ; Hunua Kange (Major Broun) ; Tuakau ; Ohaupo 

 (Musson) ; Wairangi (A. Suter) ; Tarukenga (Major Broun) ; Mount 

 Pirongia (Urquhart) ; Waimarama (A. Hamilton) ; Kamo (C. Cooper). 



Found on Hymenophyllum, in dense bush (Cheeseman). 



4. Laoma marina, Hutton, 1883. Plate 10, figs. 12, a, c, 12&. 



Endodonta marina, Hutt., N.Z.J.S., i, 1883, 476 ; T.N.Z.I., xvi, 176, 196. 

 Laoma marina, Hutt. : Suter, T.N.Z.I., xxiv, 283, fig. in text ; Pilsbry, 

 Man. Conch. (2), viii, 57, pi. 23, f. 17-20 : Hedley and Suter, P.L.S. 

 N.S.W. (2), vii, 646 ; Suter, J. de Conch., xli, 274, pi. 9, f. 6. Endodonta 

 nerissa, Hutt,, T.N.Z.L, xvi, 1883 (1884), 176, 196. 



Shell very small, trochiform, carinated, narrowly perforated, thin, 

 subtranslucent, corneous, streaked with reddish, aperture with 3 to 7 



