676 GASTROPODA. (Pidnumala, 



fine spiral lines on all whorls, the post-nuclear whorls with flexuous 

 very fine and close riblets, about 25 to 30 per millimetre ; the inter- 

 stices reticulated by fine growth-lines and spirals. Colour pale-horny, 

 radially banded with reddish-brown, forming sometimes zigzag lines ; 

 base uniformly brown ; sometimes the bands are absent on the last 

 half of the body-whorl. Epidermis very thin, with a silky lustre. 

 Spire little elevated, conoidal, its height about half that of the aper- 

 ture. Protoconch of 1^ convex whorls, with spiral stria? only. Whorls 

 .'% rapidly increasing, rounded; base con-vex. Suture impressed. 

 Aperture oblique, ovately lunate. Peristome thin, straight, regularly 

 arched. Basal Up somewhat flattened. ColumeUa short, oblique, 

 arcuate. Inner lip reflexed above and partly covering the narrow 

 perforation, which is preceded by a broad funnel-shaped depression. 



Diameter Maj., 3-6 mm. ; min.. 3 mm. : height, 2-2 mm. 



Dentition (Button, T.N.Z.I., xvi, 171. pi. 10, f. D). Formula of 

 teeth 14+1+14. 



Type in the Canterbury Museum, Christchurch. 



Hub. -- Auckland, type (Cheeseman) ; Whangarei (A. Sutr) ; 

 Thames (Adams) ; Kawau Island (Miss F. Suter) ; Hunua Range 

 (Major Broun) ; Ohaupo (Musson) ; Hawke's Bay (W. Colenso) ; 

 Seventy-mile Bush ; near Waitomo Caves (A. Hamilton) ; Toko, near 

 Stratford (R. Murdoch). Not recorded from the South Island. 



Subsp. parva, Suter, 1909. 



Flammulina costulata parva, Sut., P. Mai. S., viii, 1909, 259. 



Distinguished from the species by the following characters : The 

 shell is smaller, subdiscoidal, and moderately umbilicated ; the sculp- 

 ture is the same, but the spirals on the protoconch are very faint ; 

 colour and colour-markings very similar, the brown streaks, however, 

 extend usually over the base ; the spire is very little raised : the 

 umbilicus is moderate, deep, its diameter being 0-6 mm. 



Diameter Maj., 2-9 mm. ; min., 2-4 mm. : height, 1-3 mm. 



Animal unknown. 



Type in my collection. 



Hob. Benderson, in native bush amongst mould (B. S.). 



6. Flammulina crebriflammis, Pfeiflter, 1853. Plate 26, fig. 16, a, b. 



Helix crebriflammis, Pfr., M.H. Viv., iii, 1853, 91 ; P.Z.8., 1852 (1854), 

 148 ; Conch. Cab. (2), i, 456, pi. 155, f. 5-8 ; Reeve, Conch. Icon., vii, 

 pi. 131, f. 805. Heiix (Paryphanta) crehri//>innni^, 1'i'r. : Hector, Cat. 

 Land Moll. N.Z., 10. Nanina (Paryphanta) <-riltrit!n/ii/ins, Pfr., NomencL 

 Hel. Viv., 35. Paryphanta crebriflammis, I't'r. : Mutton, M.N.Z.M., 24, 

 Amphidoxa crebriflammis, Pfr. : Button, T.N.Z.I., xvi, 199. Elcea 

 crebriflamm.it, Pfr. : Tryon, Man. Condi. ('2), i, 130, pi. 20, f. 9. Flam- 

 mulina crebriflammis, Pfr.: Hedley and Sutrr. P. L.S. N.S.\V. (2), vii, 

 644 ; Suter, J. de Conch., xli, 239. 



Shall small, depressed, umbilicated, thin, finely striated, shining, 

 pellucid,^ with brown zigzag bands. Sculpture formed by close 1111 



