163 



NOTES— CONCHOLOG h 



Lancashire Helices.- — As I am particularly interested in the distribution 

 of the mollusca of the North of England, I wish some one could be induced to give 

 us a more complete account than has yet appeared of the land and freshwater 

 molluscs of Lancashire. Judging from recent notes, shells must be scarce in 

 Lancashire, or otherwise the county has not been well searched. Mr. Cockerell 

 only mentions three species of Helix : — H. rotundata, H. hispida, and H. concinna, 

 in the account of his walk in Lancashire in February number of Naturalist, and 

 Mr. Standen, a resident in the county, only mentions ten species in March number. 

 The dearth of shells seems to extend also into Cheshire. In Mr. David Dyson's 

 ' Shells of the Manchester District,' published in book form in 1850, a rather fuller 

 list is given, but some that we have common in Yorkshire, on the eastern side of 

 the mountains, are described as rare in Lancashire. No Lancashire localities are 

 given for Helix ericetorum, H concinna, H. lapicida, H. virgata, H. cantiana, 

 H. pulchella, or H. rupestris. These, however, may have been found since. 

 Helix caperata is entered for one locality only. The rarer species mentioned by 

 Mr. Dyson for Manchester district, are Helix aculeata, H. pygmcea, H. fusca, and 

 H. sericea, with Zonites fulea, and Z. excavatus. Information respecting the 

 special distribution of species is much wanted, as certain species, supposed to be 

 everywhere common, may be found to be absent from large areas. Especially is 

 information wanted on Helix virgata, H. caperata, H. lapicida, H arbustortim, 

 and H. cantiana, shells which are all easy to find if they occur at all. Our various 

 hand-books of British mollusca, copied one from another, are out of date, or too 

 general to be of much use on geographical distribution. — Geo. Roberts, Lofthouse, 

 March 3rd, 1886. 



Mollusca from Seaton Carew, Co. Durham.— The Rev. J. W. 

 Pattison has recently sent me a number of shells collected in the neighbourhood 

 of Seaton Carew for identification. As a contribution to the local fauna it may 

 be well to give the list, which is as follows : — Pecten pusio, P. tigrinus (a small 

 single valve), Mactra stultornm var. cinerea, M. solida var. elliptica, Cardinm 

 echinatum, Tellina dalt/iica, Solen ensis, Lucinopsis tmdata, Mya tmncata, 

 Saxicava rtigosa, Tapes pnllastra and var. perforans, Lutraria elliptica, Vemts 

 lincta, Capuhis hungaricus, Emarginida fissnra. Patella vulgata, Helcioti pelltc- 

 cidnm and var. Icevis, Littorina rudis, L. obtusata and var. lutea, L. littoralis, 

 Lacuna crassior, L. divaricata and var. canalis, Trochus ttimidus, T. cinerarucs, 

 Hydrobia ulva, Natica catena, N. alderi, Buccinum undatwu, Purpura lapilhts, 

 Nassa incrassata, Melampits myosotis var. ringens, Bythinia ientaailata, Planorbis 

 spirorbis, Limncea peregra vars. ovata and intermedia, Helix nemoralis vars. 

 libellula 00300 and 123(45)1 an d Helix aspersa. — T. D. A. Cockerell, Bedford 

 Park, Chiswick, May 1886. 



Shells in Coverdale and near Markington, N.W. Yorkshire. 



— Mr. R. C. Chaytor, of Scrafton Lodge, near Middleham, has, from time to 

 time, sent me boxes of shells collected in Coverdale, from the examination of 

 which I have drawn up the following list of the mollusca of that district : — Vitrina 

 pellucida, Hyalina callaria (a few of the type, and several of the transparent 

 greenish variety 'albida' of Jeffreys), //. crystallina, H. alliaria Jeff., H radmtula, 

 PI. pura, type and var. margaritacea, Helix arbustorum, type, var. cincta, and 

 several var. alpestris, H. concinna, H. rupestris, H rufescens and var. rubens, 

 H. hortensis var. lutea 12345, H. rotundata, Pupa umbilicata, Balea perversa, 

 Clausilia rugosa, C. laminata, Bulimus obscurus, Cochlicopa hibrica, and one of 

 var. ovata, C. tridens, Carychium minimum, Conulus fulvus, and Li/uncea 

 truncatula, var. resembling minor Jeff., but 6 mm. long. In addition to the 

 above the following were sent from near Markington : — Anodonta anatina (a 

 young one), Sphosrium corneum, S. lacustre, Pisidium pulchellum, Bythinia 

 tentaculata, Physa hypuorum, Limiuza trunca'ula, and Aucylus fluviatilis. Mr. 

 Chaytor also sent two very large specimens of Succinea putris, measuring respec- 

 tively 22 and 21 mm. in length, but he had not collected them himself, and was 

 uncertain as to the locality, though believing them to be Yorkshire specimens. — 

 T. D. A. Cockerell, Bedford Park, Chiswick, May 1886. 



June 1886. 



