ores ON SOME NEW ZEALAND FLAauv 
P DESCRIPTION OF F. PONSONBYL nav. LTE 
By Hewry Surer. 
Read 11th June, 1897. 
1, Frammutina (Puenaconerrx) privta (Reeve). 
Helix pilula, Reeve: Conch. Icon., sp. 809 (1852), 
Helix iota, Pfeitier : Mon. Hel. Viv., vol. iii (1853), p. 69; Pr 
Zool. Soc., 1852 (1854), p. 57. yee ae 
Helix ( Charopa) tota (Pfr.): Hector, Cat. Land M 
1873, p. viii. and Moll. New Zealand, 
Patula iota (Pfr.) : Hutton, Man. New Zealand Moll., 1880, p. 6 
Charopa (Thalassia) iota (Pir.): Tryon, Man. Conch., ser. pir ‘ 
aeohole p. 212, Pope fig. 43 (copy of Reeve). oe 
Phenacohelix granum (Pfr.): Hedley & Suter [non Pfr.], P 
Soc. New South Wales, ser. 11, oa vii, p. b ? roc, Linn. 
To Mr. E. A. Smith I am indebted for the following additions to 
the diagnosis of the species, as observed on the type-specimen drawings 
of which, kindly sent by Mr. J. H. Ponsonby, are here reproduced ed 
“ Protoconch, one and a half whorls, minutely spirally striated i 
riblets. Nine riblets or eight furrows to a millimetre. The entine 

Flammulina pilula (Reeve). Flammulina Ponsonbyi, n.sp. 
surtace between the riblets, as seen under an inch objective, is very 
minutely decussated. In some lights the longitudinal striae are more 
noticeable, and vice versd. The ribs are slender, subequidistant, and 
of equal size. Diam. maj. 3°5, min. 3°25 mm.; alt. 2°5 mm.” 
_ On examining the specimens in my collection, I found them to agree 
in the characters pointed out by Mr. E. A. Smith. The number of 
riblets, of course, is slightly variable. In most specimens I found them 
to be 9, in some 8, and in one 7 only, per millimetre. The umbilicus 1s 
sometimes a little narrower than in the type, but always perfectly 
open. In adult specimens the diameter is 4, whilst the altitude 
varies from 2°5 to 8 mm. 
Hab.—North Island :—Whangarei; Mt. Wellingt 
near Auckland; Hunua Range; Wanganui; Waimarama ; 
Bush. Stewart Island :—Halfmoon Bay. 
on Lava Fields, 
Forty Mile 
