T^^8 Yorksliire Xatiirdlists at Boives. 



Here also occurred Papa cyliudracea , and Mr. Farrah found 

 Helix nenioralix. In Deepdale Mr. Hawkesworth collected 

 Hygroniia hispida commonly. The Sleightholmedale collections 

 were made by Messrs. Hawkesworth, T. Gibbs-, T. Sheppard, 

 and A. Robertshaw, who found (Uaiisilia bideniata and Pyni- 

 mididct rotiiudata commonh'. Cochlicopa liibrica was also four;d 

 there by Mr. Hawkesworth, and Aseca tridens, Vitrea alliand, 

 r. cn'stalliua, and Arion atcr v. iiigrescem by Mr. Gibbs. A 

 thrush-stone in this dale \ielded frag-ments of Helix horleiisis 

 and Helicigona arbustornm to Mr. Sheppard. On the Greta at 

 Brig-nal Banks Mr. Gibbs found Clausilin bidenlala, which also 

 occurred along" with Cochlieopa litbriea, Pyramidiila rotiindata, 

 Helix Jwrtensis, Agriolii)iax dgreslis, Arioii hortensis, and Liiuax 

 arbonim to the writer, in the beech wood near Greta Bridg-e. 

 The Rev. John Hawell and Mr. T. Ashton Lofthouse collected 

 Balea perversa and Pvraniidiila nipesfris on the Kilmonds Scar 

 route. 



On the excursion prog"ramme the occurrence some twenty 

 years ag:o of g'igantic examples of Ario?/ ater among- the nettles 

 there was noted. This time a very large example of the 

 same species was found along with a gigantic Limax maximiis, 

 and Agriolimax agrestis, Arion liortensis, A. circiiiiiscripliis, 

 Pyramidiila rotundata, Hygromia hispida, Vitrea eellaria, l'. 

 alliaria, and Pupa cyliudracea were found, the interior of the 

 Castle, covered as it is with loose stones and rank vegetation, 

 being quite a paradise for mollusca. A night search made by 

 Mr. Sheppard with a lantern yielded further results in abund- 

 ance of typical though small examples of Limax arbonim and 

 numerous specimens of L. ffavus var. rufescens. This last is 

 perhaps the best find made on the excursion, for not only does 

 it add the species to the fauna oi the vice-county York N.W., 

 but the specimens, full grown, are the most richly coloured and 

 characteristic examples of the var. rufescens which I have ever 

 seen. The variety had hitherto only been placed on record toi" 

 four vice-counties, and one of these Bowes Castle examples will 

 probably furnish a sitting for the coloured plate illustrating the 

 species in Mr. Taylor's Monograph. Mr. Sheppard states that 

 the slugs were found, after considerable search with a lantern, 

 crawling on the inside of the walls at about 8 or lo feet height, 

 and opines that they had emerged from the cracks in the stones 

 of the wall. The total list of mollusca collected included 7 slugs 

 and 15 land shells (22 altogether), and not a single water-shell 

 was noted, no search having been made for them. 



