254 



BIBLIOGRAPHY : 



MOLLUSCA, 1886-87. 



[W. C. Hey.] York N.E. 



The Yorkshire Naturalists' Union at Whitby [August 3rd : Pisidhim 

 pjisilhim^ Unio margaritifer, Flanorbis nautileus, Liumcca peregra, L. 

 tmncatula, Aftcyhis jinviatilis. Avion ater, Limax agrestis^ L. maximiis^ 

 Siiccinea pntvis, Zonites cellarius, Z. allia7-iiis, Z. nitidtihis, Helix aspeisa, 

 H. nemoralis, H. hispida, H. concinna, H. rotimdata, Ztia, and of marine 

 shells Littorina saxatilis, L. littorea, L. littoralis. Chiton inargi^iatjis , 

 Trochiis cinereiis, Modiola modiolus, Anomia ephippitim, and Patella vulgata\ 

 Nat., Oct. 1885, p. 348-349. 



[W. C. Hey.] York S.E. 



The Yorkshire Naturalists' Union at Flamborough Head [14th June, 

 1886 ; SphiErium lacicstre, three Fisidia, Limnaa peregra, L. pahistris, L. 

 truncatitla, Pla]iorhis nautileiis, P. coniplanatus, Physa fontinalis, three 

 Ariotis, three Limaces, Siiccinea putris, four Zonites, Helix aspersa and var. 

 exalbida, H. neuioralis and var. albolabiata, H. cantiana, //. rufescens, H. 

 hispida and var. stibj-tifa, H. virgala, H. caperata, Clansilia rugosa, Ztia, and 

 CarycJmnn noted]. Xat., July 1886, pp. 216-217. 



AVm. C. Hey. York N.E. 



Reversed Specimen of Helix virgata at Coatham [within a few yards of 

 the spot where the writer had some years before found a reversed H. aspersa ; 

 coincidence of station noted as suggestive]. Nat., Jan. 1887, p. 20. 



W. C. Hey. « York N.E. 



The River Foss [and its molluscan inhabitants; SpJuvriinn (all four), both 

 Anodontcs, Unio picioyiun, U. ttpuidiis, Palndina vivipara, Liumcca aiiricii- 

 laria, L. palnstris.L. stagnalis, both BytJiinics. both Valvatce, Physa fontinalis, 

 Plaftorbis carinatiis, P. coinplanatus, P. corneics, Ancylns fiuviatilis, Neritina, 

 and the Succinece]. Nat. World, Feb. 1887, iv. 22-23. 



[W. C. Hey.] York N.E. 



Yorkshire Naturalists at Gormire Lake and Thirkleby Park [July 1887 ; 

 Planoj'bis albns, PI. naiitiletis, Physa fo7itinalis, Pisidinm pusillnni, Litnncca 

 glabra, L. peregra, Spha-riwn co7-neiim. Helix lapicida, H. rotimdata, H. arbns- 

 torum, H. hortensis, H. hispida, H. rufescens, Zonites alliarius, tupa 

 umbilicata, Clansilia rugosa, Pisidiiun fontinale, and Limax agrestis observed; 

 Helix aspersa is also noted as found by W. Cash, but this is an error ; the fact 

 being that W. Cash threw away a specimen he happened to have in his 

 pocket, and this was picked up by someone else]. Nat,, Aug. 1887, p. 237. 



W. C. Hey. York S.E. 



Notes on Land and Fresh-water Shells near 'Qx\6Xvi\%ton'^Anodonta cygnea, 

 Planorbis corneus, Limncea stagnalis in Boynton Fish-pond ; Helix virgata and 

 H. caperata at Auburn, and var, ornata at Bridlington ; Pupa marginata near 

 Bempton ; Planorbis vortex and Valvata piscinalis at Driffield ; H. arbustoruin 

 at Speeton Cliffs; earthy marls at the back of Bridlington Harbour contain 

 iovit Limncect:, three Planorbes, Siiccinea putris, Bythinia tentaculata, Sphtvrium 

 corneum and Pisidiiun piisillum ; the blue marls contained the two last-named 

 with Valvata piscinalis and Ziia ; an excavation in pre-glacial clay at Sewerby 

 yielded marginata. Helix piilchella, send H. hispida sub-fossil; singularly, 

 the same three occurred together at Bempton alive]. Nat., Dec. 1887, p. 374. 



[Richard Howse.] Northumberland S. 



[Limax arborum from Akeld ; L. hvvis, Arion bourguignati, Zonites radiatulus, 

 Z. purus, and Z. crystallinus from West Woodburn, Northumberland], 

 Journ. of Conch., Oct. 1887, v. 249, 

 Baker Hudson, , Durham. 



Land and Fresh-water Shells collected in County Durham, 1883 and 1884 

 [45 species (besides varieties) mentioned, with localities], Nat,, Dec, 1884, 

 p. 112, 



Baker Hudson. York N.E. 



[A very peculiar example of Limax maximus from Airy Holme Wood, 



N.E, Yorkshire], Journ. of Conch,, Jan, 1885, iv. 261. 



Naturalist, 



