t'-lnmmulina.] GASTROPODA. 681 



Shell small, depressed, imperforate or very narrowly subperforate, 

 very thin, shining, pellucid, with brown zigzag bands. Sculpture 

 consisting of fine arcuate and retractive growth-lines only. Colour 

 yellowish-white, with angular flame-like markings and rufous serra- 

 tions, closely set together. Spire somewhat convex, slightly elevated, 

 its height about two-fifths that of the aperture. Protoconch of 1| 

 smooth convex volutions. Whorls 3 to 3|, convex, rapidly increasing, 

 the last not descending, depressed ; base flattish, impressed in the 

 middle. Suture deep. Aperture diagonal, rotundly oval. Peristome 

 simple, straight. Columella subvertical, arcuate. Inner lip thin, re- 

 flexed above, and spreading as a thin layer over the convex parietal 

 wall. Perforation slightly open or quite sealed up.' 



Diameter Maj., 7 mm. ; min., 6 mm. : height, 3-5 mm. (type). 



Animal and Dentition. Hutton, T.N.Z.I., xvi, 170, pi. 9, f. Z ; 

 pi. 11, f. P (Paryphanta phlogophora). 



Animal with the mantle subcentral, slightly reflected over the 

 peristome of the shell, the margin entire ; eye-peduncles moderate, 

 thick, the tentacles short ; tail depressed, rounded, with a mucous 

 gland. Colour slate-grey, the sole and sides of the foot orange. 



Jaw arched, thick, tapering towards the ends, with very numerous 

 fine vertical plaits (smooth, according to Hutton). 



Dentition. Radula having the formula 13 + 8+1 + 8+13. Central 

 tooth tricuspidate, the side cusps minute ; laterals with the ectocone 

 becoming obsolete and the entocone of moderate size ; marginal teeth 

 with 3 points, of which the middle is the longest. 



Type in the British Museum. 



Hob. North Island : Near Rotorua (Major Broun) ; Taupo (H. 

 Hill) ; Mount Pirongia (Urquhart) ; Toko, near Stratford (R. Mur- 

 doch) ; Forty-mile Bush (H. S.) ; Wellington. South Island : Kene- 

 puru (McMahon) ; Birch Hill, Nelson (E. Suter) ; Stonyhurst (F. 

 Suter) ; Capleston (Cavell) ; Greymouth ; Oxford (Professor Chilton) ; 

 Riccarton Bush (H. S.) ; Akaroa (F. Suter) ; Preservation Inlet. 

 Auckland Islands (Le Guillou). 



Remarks. The specific name zebra has, no doubt, priority ; but, 

 as no figure of the shell was given, I select Pfeiffer's phlogophora as 

 being the next in chronological order, and which was figured by Reeve. 

 Moreover, I have not seen Le Guillou's species from the Auckland 

 Islands, which is narrowly umbilicated, and may be distinct from 

 F. phlogophora. 



12. Flammulina Pilsbryi, Suter, 1894. Plate 9, fig. 13, a, b. 



Flammulina Pilsbryi, Sut., T.N.Z.I., xxvi, 1893 (1894), 133, pi. 19, f. 32, a, b. 

 F. (Calymna) Pilsbryi, Sut., J. de Conch., xli, 243. 



Shell minute, discoidal, umbilicated, thin and semi transparent, 

 closely and finely costate. Sculpture on the post-nuclear whorls con- 

 sisting of fine and close arcuate retractive riblets, about 20 per milli- 



