SuTER. — On New Zealand 2Iollusca. 133 



Genus Flammulina, Suter. 



■2. Flammulina (Calymna) pilsbryi, n. sp. Plate XIX., 



iigs. 32-32^. 



Shell minute, discouTal, umbilicated, horny with radiate 

 brown streaks, which usually form zigzag lines at the peri- 

 phery, flowing more or less together. The colour-markings 

 are very variable, sometimes there are only a few broad brown 

 streaks on the upper side. Silky, very thin and semi- 

 transparent ; very closely and finely radiately striated, the 

 striiE slightly arcuated and directed backwards, about 20 per 

 millimetre, reticulated in the interstices. Spire flat, embryonic 

 whorl spirally striated. Whorls 4, the last rapidly increasing, 

 slightly rounded, the last not descending in front ; suture not 

 deep. Periphery rounded. Aperture slightly oblique, rounded, 

 very little excavated by the body-whorl ; peristome acute, 

 straight, columella lip not expanded, margins approximating. 

 Umbilicus conical, almost one-third of the diameter. Base 

 rounded. 



Diameter, greatest 2fmm., least 2imm. ; height, 1mm. 



Hab. North Island : Forty-mile Bush (H. S.), Howick 

 t(Captain T. Broun), Waimarama (A. Hamilton). South 

 Island: Hooker Valley, Eiccarton Bush (H. S.), Capleston 

 (Cavell). 



Note. — Named in honour of Mr, H. A. Pilsbry, of Phila- 

 delphia, who has done so much to clear up the systematic 

 position of our Helicidce. 



This shell is near F. costulata, Hutt., but is considerably 

 smaller, much broader umbilicated, more depi-essed, and some- 

 what narrower striated. 



Jaw membranaceous, arcuate, vertically plaited, the cut- 

 ting-margin slightly denticulated, ends rounded, somewhat 

 tapering. 



Badula tongue-shaped, formed of about 100 straight 

 transverse rows of teeth, 7 — 4 — 1 — 4 — 7. 



Central and latei'al teeth tricuspid, marginals broader than 

 long, tridentate, the median tooth being the largest. 



It is the typical dentition of Flammulina, as several times 

 described and figured by Professor Huttou and myself, and 

 figures are therefore hardly wanted. 



3. Pyrrha subincarnata, n. sp. Plate XIX., fig. 33, and 



Plate XX., figs. 34 and 35. 



Shell (figs. 33-336) globosely depressed, subperforated, 

 shining at the base, from horny to flesh-colour, young speci- 

 mens horny all over, adult ones either reddish round the apex 

 and the mouth or the flesh-colour may extend over the whole 

 shell ; rather thin, transparent ; somewhat irregularly, closely. 



