PROCEEDINGS OF SOCIETIES. 1(55 



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. 

 Lymngeus 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. Med way, near Maidstone. 

 Ancylus fluviatilis. Abundant in one stream. 



Velletia 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. Rare. 



„ imbricatus. Very abundant in one small pond ; scarce elsewhere. 

 „ marginatus. Common. 

 „ vortex. Local. 

 „ spirorbis. Common. 

 ,, contortus. Not uncommon. 

 ,, nitidus. Local ; ponds in Knole Park. 

 Cyclostoma elegans. Pound on the chalk in extraordinary numbers ; more fre- 

 quently without the dark markings. 

 Cyclas cornea. Very 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 tbe Darent. 

 Anodon cygneus. Abundant in one large pond, and also found in the Darent. 

 Unio tumidus. Large ponds near Bay ham Abbey, Tunbridge Wells. It is also 

 common in the Thames. 



Mr. Hogan also read the first part of a catalogue, by the Rev. 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 net ;" nor 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 



