PROCEEDINGS OF SOCIETIES. 
165 
Between L. pereger and auricularius I have, from various localities, a 
series that seem to connect the two. In Holland, where I have ob¬ 
tained remarkably large and developed specimens of auricularius, 
some with the lip doubled inwards in a very peculiar manner, the 
same ponds produced regular gradations of form down to the ordi¬ 
nary type of pereger. 
LymnEeus stagnalis. In the Darent, and ditches near it. I have observed this 
shell, in North Holland and near the Maes, grow to a size quite un¬ 
known to British specimens. 
„ palustris. Frequent. Also the var. with a violet-brown tinge in the 
throat. 
„ truncatulus. One locality ; rare. 
„ glaber. Medway, near Maidstone. 
Ancylus fluviatilis. Abundant in one stream. 
Yelletia lacustris. One locality, a pond in Knole Park; abundant there. 
Aplexus hypnorum. Scarce. 
Physa fontinalis. Ditches near the Darent. One specimen resembles the figure in 
Turton intended to represent P. rivalis, being much large than ordinary. 
Planorbis albus. Bare. 
„ imbricatus. Yery abundant in one small pond ; scarce elsewhere. 
„ marginatus. Common. 
„ vortex. Local. 
,, spirorbis. Common. 
„ contortus. Not uncommon. 
„ nitidus. Local; ponds in Knole Park. 
Cyclostoma elegans. Found on the chalk in extraordinary numbers; more fre¬ 
quently without the dark markings. 
Cyclas cornea. Yery common. 
,, rivicola. The Medway, near Maidstone; obtained by H. Field, jun., Esq. 
Pisidium nitidum. Not uncommon, in one small pond. 
,, pusillum. Locally abundant. 
„ pulchellum. Local. 
,, amnicum. In the Darent. 
Anodon cygneus. Abundant in one large pond, and also found in the Darent. 
Unio tumidus. Large ponds near Bayham Abbey, Tunbridge Wells. It is also 
common in the Thames. 
Mr. Hogan also read the first part of a catalogue, by the Bev. J. Greene, corres¬ 
ponding member: — 
A LIST OF LEPIDOPTERA HITHERTO TAKEN IN IRELAND, AS FAR AS THE END 
OF THE GEOMETRY. 
Irish Entomologists (meaning by that term, those who have devoted their atten¬ 
tion more particularly to Lepidoptera) have been often reproached for the apathy 
and indifference manifested by them in their pursuit; and the country itself fre¬ 
quently described as singularly barren and unproductive in this particular order of 
insects. There is, doubtless, some truth in each of these statements; Irish collec¬ 
tors certainly have not manifested the same untiring assiduity as their English 
“ brethren of the netnor does Ireland appear to possess nearly so many indi¬ 
genous species as England. We may hope, however, that the establishment of 
the Dublin University Zoological Association will be the means, not only of 
enlarging the number of Entomologists, but of increasing their zeal and activity, 
and, consequently, of lessening the, at present, large number of Irish “Desiderata.” 
In the anxious hope of furthering these desirable objects, I have drawn up the 
present list, which, incomplete as it is, will yet evidence, that Ireland possesses 
many rare indigenous species, and would, at the same time, lead us to hope, that 
many others yet remain, to be discovered by active and persevering collectors. 
As I myself have had but little opportunity of collecting in Ireland, I am little 
more than a compiler of the present list, and have to return my best thanks to those 
gentlemen, whose names are mentioned in it, for the kind and prompt manner 
