in Norfolk and Derbyshire. 325 



seemed to be drawn within the shell often half an inch or 

 more. I generally found their nests in the hollow stump of 

 a tree or large thorn, and often discovered traces of an enemy 

 among them, as there were dozens of broken shells in snug 

 and cozy spots, where one or perhaps a pair of thrushes had 

 been regaling themselves with a treat. The variety, in colour, 

 size, and marking, was great, as scarcely two were similar to 

 each other.* 



The Girdled Snail {Helix nemoralis) I found but sparingly 

 crawling out on the fine days in April, when the bank lay 

 exposed to the warm rays of the sun. , ^ * y A ' 



In addition to these, I found Helix hortensis, arbustorum, 

 on low grounds near the river ; carthusiana, very common ; 

 rufescens, caperata, ericetorum, nitens, radiata. 



Of Freshwater Shells, I found, on a bank of sand in the 

 river Waveney, below Shotford Bridge, the following different 

 species: they had been left there by the floods, and several 

 land shells were also among them. I collected these : — 

 Gyclas cornea, amnica, and pusilla ; A'nodon cygneus, ik/ysca 

 pictorum, Succinea amphibia and oblonga ; Planorbis cari- 

 natus, marginatus, vortex, corneus, contortus, and fontanus ; 

 Limneus auricularis, pereger, stagnalis, palustris ; Ph^sa 

 fontinalis; Valvata obtusa, spirorbis, planorbis; Paludina 

 vivipara, achatina, impura, similis; A'ncylus lacustris. Also 

 these 0/1 fll «n^Sii9hfiH ia Jn^biasi a -gnisfl 



* The Rev. Thomas Image, of Whepstead, near Bury St. Edmunds, 

 has a collection of selected varieties of the shells of Helix aspersa, 

 nemoralis, and perhaps other species. They are admirably cleaned and 

 preserved, and mounted or fixed, singly or in pairs, according to size, on 

 little square wood blocks or pavements (between two and three inches 

 square, and perhaps more than half an inch thick), with a white or coloured 

 ground, I have forgotten which, with which Mr. Image has paved the 

 floors of the drawers in which he keeps these snails' shells. The shells 

 were arranged in lines of (I think) the length, not breadth, of the drawer, 

 and yet (I also think) in a quincunx order. Of each variety -there was a 

 row, and the varieties were of this kind: of Helix aspersa, a row of 

 shells devoid of the black band ; a row with the black band present in a 

 broad state; a row with it, in a narrow state; a row with (if I have not 

 forgotten) two black bands present, &c. Of Helix nemoralis I have for- 

 gotten every thing, save that the shells looked bright and beautiful, but 

 as the bands or " girdles " on this pretty shell are very various, numerous 

 distinct varieties might, and may, be at pleasure collected. I was sur- 

 prised at the wide distinctness of the varieties of H. aspersa, although, 

 in gardening practice, I had killed thousands of individuals of it ; which 

 fact may show how instructive are conspective displays of many indi- 

 viduals of any kind of natural object. Mr. Image is much devoted to 

 the study of objects of nature, especially of fossil remains, and of the 

 last and other subjects has a rich collection of specimens, all which he 

 was so kind as, with the greatest patience and pleasure, to show hie, when 

 I once called on him. — J.D. 



\ BfTnaflbB and* 3 u6\ 10 ^eidjt esmitemog 



