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SuTER.—On New Zealand Mollusca, 133 
Genus Frammotrina, Suter. 
2. Flammulina (Calymna) pilsbryi, n. sp. Plate AIX... 
figs. 82-320. 
Shell minute, discoidal, 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 
strie 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. Peripheryrounded. 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 23mm., least 24mm. ; height, 1mm. 
. Hab. North Island: Forty-mile Bush (H. 8.), Howick 
(Captain T. Broun), Waimarama (A. Hamilton). South 
Island: Hooker Valley, Riccarton Bush (H. §8.), 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 Helicide. 
This shell is near F’. costulata, Hutt., but is considerably 
smaller, much broader umbilicated, more depressed, and some- 
what narrower striated. 
Jaw membranaceous, arcuate, vertically plaited, the cut- 
ting- margin slightly denticulated, ends rounded, somewhat 
tapering. 
'  Fiadula tongue-shaped, formed of about 100 straight 
transverse rows of teeth, 7—4—1—4—7. 
Central and lateral 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 Hutton and myself, and 
figures are therefore hardly wanted. 
3. Pyrrha subincarnata, n. sp. Plate XIX., fig. 33, and. 
Plate XX., figs. 34 and 36. 
Shell (figs. 383-836) 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, 
