62 Mr. H. Suter on the Relation between the ' 
the genera which formed my family Phenacohelic; vat 
New Zeal. Inst. xxiv. p. 270) in hs genus, Gerontio oa 
lishing, amongst others, a section Calymna, Hutton tu xe 
species formerly placed in the genus Amphidozxa, Huis n : 
Albers), and subgenus Calymna, Hutton. For these hal 
however, the name of Llammulina had been proposed 2 
- a . n 
1873 by von Martens (‘Critical List of New Zeal. Moll? 
p. 12), and was adopted by Mr. C. Hedley and myself in our 
** Reference List’”’ (/. c. p. 643). Gerontia should therefore 
be replaced by Flammulina as a generic name, the former 
dating from 1883. 
Later on Mr. H. A. Pilsbry published his “ Preliminary 
Outline of a new Classification of the Helices ”’ (Proc. Acad, 
Nat. Sci. Philad. 1892, p. 8387 &c.), in which he unites all the 
sections cf his former genus Gerontia (including Endodonta, 
Charopa, &c.) in one large genus Endodonta (l. c. pp. 401, 
402). With this I cannot agree. Mr. H. A. Pilsbry was 
under the impression that the New Zealand Endodonta and 
Charopa possess a mucous tail-gland, which is not the case, 
I do not attach very great importance to the presence or absence 
of the caudal gland, as we really do not know its true signi- 
ficance; but in the mollusks classed under Plammulina 
the jaw is always stegognath, the radula is more or less 
pseudo-zonitoid, and, besides, a mucous tail-gland is always 
present ; whilst in Hndodonta and Charopa the jaw is only — 
striated, the radula is much more helicoid, and there is no 
caudal gland. Moreover, according to the geographical 
distribution as now known to me, the two genera Hlammulina 
and Hndodonta (including Charopa) belong to two different 
types—Lndodonta being of Polynesian, Flammulina of Ant- 
arctic origin. In New Zealand the Hndodonta stock has been 
immigrating from the North, the Flammulina torms from the 
South and perhaps from the West and Hast also, or the latter 
may have spread from New Zealand. 
These are the reasons which induce me to separate 
Flammulina from Endodonta, thus forming two well-defined 
genera. 
Following chiefly Mr. H. A. Pilsbry (/. ¢. pp. 401-403) 
I now propose the following classification of the New Zealand 
Helicidee :— 
Group Haplogona. 
Genus 1. FLamMMULINA (v. Martens, 1873), Suter. 
Sect. 1. FLammutrna, von Martens, 1873, s. str. (=Amphidoxa, Hutton, 
not Albers), Type: F 
; * 
