12 THE ZOOLOGIST. 
NOTES ON SOME MOLLUSCA COLLECTED IN SURRKEY. 
By T. D. A. CockERELt. 
TuEre is, perhaps, no county in England so rich in 
Terrestrial Mollusca as Surrey, and no part of Surrey is richer 
than the Caterham Valley. This being the case, one naturally 
enquires, Has this district been properly worked out? What 
records have we? Is there not much yet to be done? On looking 
over the public records, it appears that this district is by no 
means so well known as it might be, and that much may yet be 
done before we can say that there is nothing left for future 
observers. It occurs to me, therefore, that a list of even two 
days’ captures may be of some service, as indicating the 
mollusean fauna of the district. It is as follows, the species 
being given in the order of their occurrence :— 
Sept. 7.—(1.) Mollusca between Caterham and Godstone, 
commencing at Caterham.—Hyalina nitidula, Helix pomatia, 
Cyclostoma elegans (besides the type form there also occurred the 
var. fasciata, and a very dark and almost unicolorous form, and 
also a greyish white variety tinged with brown at the apex: this 
latter is also found at Folkestone, Mr. J. H. Ponsonby having 
given me specimens from that locality; the Folkestone 
specimens are whiter and the markings are somewhat less 
distinct than in my Surrey one), Helix hispida, H. caperata, 
H. cantiana, Hyalina glabra, Jeff., Helix rufescens and var. 
rubens, H. rotundata, H. hortensis var. incarnata, band-formula 
12345 (for explanation of band-formula see ‘ Journal of 
Conchology.’) ; H. virgata and bandless variety, H. aspersa, 
H. ericetorum (also a variety in which the black bands are 
wanting, but traces of colourless ones are visible); H. hortensis 
var. lutea 00000, and lutea 1,345, Clausilia rugosa, Hyalina 
cellaria, Arion hortensis (two varieties, the first light grey with 
bands, sole of foot grey, and the second dark grey, also banded, 
with a yellow sole) ; Limaxr agrestis, Bulimus obscurus, Cochlicopa 
lubrica, Carychium minimum (living under rush leaves in a wood), 
Arion hortensis, var. yellowish below, grey above, bands very in- 
distinct ; Helix hortensis var. incarnata 00000 and lutea 12345, 
H. aspersa, var. having the usual light mottlings nearly white, 
and the dark markings of the type replaced by a light reddish 
—— 
_ 
