Io8 JOURNAL OF CONCHOLOGY, VOI,. II, NO. 4, OCTOBER, I9O4. 



In Great Britain Limax tenellus has been reported as found in five 

 different counties. 



The first record was of a single example of what was evidently the 

 var. cerea, which was found by Mr. Blacklock, in County Durham, in 

 a wood at AUansford near Shotley Bridge, and sent to Mr. Joshua 

 Alder, who made a coloured drawing of it, which is now in the 

 possession of the Rev. Canon A. Merle Norman, and was reproduced 

 on one of the plates of Forbes & Hanley's " British MoUusca," in 

 1853. This drawing, which I have seen more than once, is a charac- 

 teristic portrayal of the species, and we can have little doubt as to 

 its having actually occurred in Durham County. But it is remark- 

 able that it has never been seen there since, and it would be of 

 interest to re-examine the locality, especially if the woods have 

 remained in the same state as when it occurred. 



The second record was for North Mavine, in the Shetland Islands, 

 on stones in the watercourse of a mountain mill, and appeared in 

 Jeffreys' "British Conchology," 1862, p. 156. The locality seems 

 likely enough, but the habitat given is suggestive more of Agriolimax 

 IcBvis, and there is no evidence as to whether the slug was correctly 

 identified nor as to who determined it, and therefore doubt as to 

 specific identification is permissible. As an authority Jeffreys himself 

 is out of the question, for by his own statement he never professed 

 to know the slugs critically, 



The third and fourth records were made by Mr. J. Conacher, jun., 

 in The Naturalist, for July, 1878, p. 177, where he recorded it as 

 found in great numbers in hedge-bottoms, near Irvine, in Ayrshire, 

 in June, 1878, and also on the Island of Bute, near Rothesay. Mr. 

 Conacher particularly noted that the yellow colour was entirely due 

 to slime, and that he also carefully examined the shield with a 

 microscope, showing that he presumably did not mistake Arion sub- 

 fuscus for it. In this case also it would be well to re-investigate the 

 "hedge-bottoms" and ascertain what species occur there. It is on 

 the face of it an unlikely habitat, unless there is primitive pine-forest 

 close by, and the date (June) is unlikely for an autumnal species like 

 Z. tenellus. Neither Mr. Conacher nor Mr. Whitwham, who also saw 

 the slugs, both of whom were personal friends of my own for several 

 years, were limacologists, and the modern study of limacology itself 

 had not commenced in Britain at that date, so that it is quite possible 

 they might have mistaken, say, L.fiavus for it. 



The fifth and last record, for Yorkshire S.W., for Hemsworth and 

 Sharlston, not common, given by Mr. Joseph Wilcock, in the Wake- 

 field Naturalists' Society's Report for i888, p. 28, may safely be 

 disregarded, for Mr. Wilcock was not a slug-student in special, 



