SuTER.—On New Zealand Mollusca. 123 
&c., in common with Tasmania, as shown by the writer quite 
recently. 
5. Limnea tenisoni, Clessin, sp. em. (tennissoni), 1886, 
Was described and figured by its author in Conch. Cab. (2), 
i, Abth. 17, p. 371, pl. li., fig. 11. Clessin’s reason for 
placing this shell in the genus Physa I do not understand, 
for description and figure clearly show that it is a Limnaa; 
and I do not think that Clessin is unable to separate the two 
genera. Clessin’s species seems to differ not very much from 
Limnea alfredi, described and figured by the writer (Trans. 
N.Z. Inst., vol. xxii., p. 229, pl. xv., figs. 17, 17a), and I propose 
to make L. alfredi a variety of L. tenisont, the latter having 
priority of publication. 
Mr. Clessin and other Huropean authors would greatly 
oblige the writer by sending him a copy, or at least a note, 
whenever they publish descriptions of new species of terrestrial 
and fresh-water shells from New Zealand; and they may expect 
reciprocity. 
6. On some Species of Bullinus, Adanson, em. (Buiinus). 
Bullinus nove-seelandie, Clessin, sp. 1886, is another addi- 
tion of Clessin’s to our fauna, though the specific name is 
preoccupied by Sowerby. According to his description and 
figure (Conch. Cab. (2) i., Abth. 17, p. 872, pl. liv., fig. 7), it 
is, in my opinion, identical with B. variabilis, Gray. Most 
species of our Bullinws are so variable that the creation of 
new species is a very easy matter; but it is highly deplorable 
if this is done, as it seems to have been the case in several 
instances, based on a few specimens, and from one locality 
only, as there is no possibility to estimate the range of varia- 
bility of the species. x. 
By comparing many specimens, and from different localities, 
I came to the conclusion that B. tabulatus, Gould, sp. 1848, 
and B. moesta, H. Adams, sp. 1861, are one and the same 
species. The distinction of species by the keeling of the 
whorls is quite untenable, and every gradation of it may be 
observed. 
Two species of Bullinus were brought to light by Mr. 
Charles Hedley—viz., B. coromandelicus, Dunker, Sp. 1862, 
and B. hochstetteri, Dunker, sp. 1862, which were omitted 
from former lists of our mollusca. I have but little doubt that 
both must be considered as identical with B. tabulatus, Gould. 
7. Athoracophorus, Gould, 1852. Plate XIV., figs. 6-9, and 
Plate*XV., figs. 10, 11. . 
In the “Enumeration of the Janellide,” published by Mr. 
Charles Hedley in the last volume of our Transactions, the 
