BIBLIOGRAPHY : MOLLUSCA, 1 886-87. 



W. D. Braithwaite, Secretary. York S.W. 



Ackworth School Natural History Society [with notes of LifnncBa glabra— 

 erroneously recorded as Planorbis glaber — in great quantity in a small pond near 

 Primrose Vale, and of Limncea stagnalis of normal shape at Wintersett, 

 Oct. 17th]. Nat. Hist. Journ., Nov, 15th, 1886, x. 169, and Erratum, Dec. 

 15th, 1886, X. 188. 



W. D. Braithwaite, Secretary. York S.W. 



Ackworth Natural History Society {^Limncca auriciilaria^ L. pabistris and 

 Paludina contecta at Askern, May 26th, 1887]. Nat. Hist. Journ., June 15th, 

 1887, xi. 106. 



[J. Darker Butterell.] York S.E. 



The Yorkshire Naturalists' Union at Pocklington [June 24th, 1885 ; Arion 

 ater, A. hortensis, Limax agrestis, L. lavis, L. maximus, L. Jiavus, Anodonta 

 cy onea, Pisidium pusilUon, Planorbis albus, PL complanatus, Limncea peregra, 

 L. truncatula, Zonites nitidulus, Z. alliaritis, Helix aspersa, H. nemoralis^ 

 H. hortensis, H. cantiana, H. hispida, H. rolundata, Bulimus obscurus^ 

 Clausilia j'ugosa, C. laminata, Zua, and Carychium, noted]. Nat., Aug. 

 1885, p. 308. 



S. C. CocKERELL. Lanc. W., Furness. 



Mollusca of Coniston and Carnforth, Lancashire [April 6th et seq., 1887; 

 three species of Limax, two oi Arion, Vifrina, eight of Zonites, Helix aspersa, 

 H. nemoralis, H. aculeata, H. ericetortim, H. nifescens, H. pulchella, //. 

 I'otiindata, H 7'upestris, H. hispida, Bulimus obscurus, Zua, Pupa jnnbilicata. 

 Vertigo edentula, Clausilia rugosa and vars. , Valvata piscinalis, Physa fontinalis, 

 Ancylus Jluviatilis, and Limncea peregra v. lacustris noted]. Nat., June 1887, 

 p. 190. 



T. D. A. CocKERELL. Lanc. S., Cheshire. 



A September Walk through Lancashire, Cheshire, and Staffordshire [made 

 from Sep. 9th to 12th, 1885 ; the route was from Liverpool by Prescot, Rainhill, 

 Warrington, Knutsford, Chelford. and Congleton to Leek, etc. ; numerous 

 species noted, with interesting remarks]. Nat., Feb. 1886, pp. 55-59. 



T. D. A. COCKERELL. York N.E. 



Marine Shells at Whitby [criticising the nomenclature of W. C. Hey's record 

 of Trochus cinereus ; editorial explanation appended]. Nat, March i886,p.l78. 

 T. D. A. CocKERELL. Northumberland. 



Arion subfuscus [Northumberland (Sutton)]. Sci. Goss., May 1886, p. 114. 

 T. D. A. CocKERELL. Linc. N. 



Chameleonic Arions [a variety of A. hortensis with orange slime at Louth]. 

 Sci. Goss., June 1886, p. 140. 



T. D. A. CocKERELL. Durham. 

 Mollusca from Seaton Carew, Co. Durham [collected by Rev, J. W, 

 Pattison ; the marine shells mentioned are species and varieties of Pecten, 

 Mactra, Cardiji»i, Tellina, Solen, Lucinopsis, Mya, Saxicava, Tapes, I^utraria, 

 Venus, Capulus, Einarginula, Patella, Helcion, Littorina, L.acuna, Trochus, 

 LLydrobia, Natica, Buccinicm, Purpura, Nassa, and Melampus — 35 forms in 

 all ; the land and fresh-water ones are Bythinia tentaculata, Planorbis 

 spirorbis, Liinutra peregra (2 vars,), Helix nenioralis and H. asprrsa\ Nat., 

 June 1886, p, 163, 



T. D, A. COCKERELL, York N.W. 



Shells in Coverdale and near Markington, N.W. Yorkshire [collected by 

 I\. C. Chaytor ; I'itrina, six species of Zonites, Helix arhusto) urn and vars., 

 //. loncinna, H. rupestris, H. rufescens and v. rubcns, H. hortensis v, lutea, 

 II. rotinidata, J^upa uuthilicata, Balea, Clausilia rugosa, CI. laniijuita, Bulimus 

 obscurus, Z;/^r and var. ovata, Azrra, Caryeh/ion , Lii/nida truneatula, Anodonta 

 analina, Splucriuiii corneu/n, S. lacusire, Pisidium pulchelluni, I^ythinia 

 tentaculata, JViysa hypnoriuii , Ancylus Jluviat His, and Sttccinea putris\ Xal., 

 June 1886, p. 163. 



