iSgo.] THE BRITISH NATURALIST. 19 



named it in MS. E. distorta var. tiimidosa, so the best way will be to 

 call the shell E. latipes var. tiimidosa (Marshall) until its true position 

 is decisively settled. 



P. 265. L. E. Adams. A note on the greenish variety of Zonites 

 glaber, which he found near Penistone. The name viridula is proposed 

 for it, but the same variety was several years ago named viridans by 

 the present writer. (Science Gossip, Oct. 1885, p. 226). 



P. 267. R. F. Scharff. Avion minimus, Simroth, a British slug. 

 A very interesting paper, in which Avion minimus is recorded from 

 Yorkshire and near Dublin. Mr. Roebuck follows with a note giving 

 18 counties and vice-counties from which he has seen it, including 

 Pembroke and several Scotch counties. The distribution of the 

 spocies seems to be northern and western in the British Isles. We do 

 not doubt that A. minimus must be regarded as a valid species ; but it 

 appears to be identical with the earlier-described A. intermedins, Norm., 

 and must, therefore, be known by this latter name. It is the Avion 

 flavus of Morquin-Tondon, 1855, and of Clessin, 1884, according to 

 Pollonera ; but it does not appear to be the Limax flavus of M tiller, 

 1774. In 1885 the present writer found it in Staffordshire, and gave 

 a description of it as A. flavus in "Science Gossip," 1885, p. 224. 

 A. intevmedius is allied to A. Iiovtensis, but it may be recognized by its 

 yellowish-grey colour, with the sole, and especially the end of the 

 body, becoming yellow. The bands are faint and ill-deftned. The 

 slime is yellow. The head and tentacles are dark grey. 



p. 270. A. J. Jenkins. Physa acuta in Scotland, found by Mr. 

 W. D. Rae at Aberdeen in warm water from a mill, of course in- 

 troduced. Mr. Jenkins kindly permitted me to examine some of these 

 specimens ; they are genuine acuta. 



p. 271. Pvoceedings of the Conchological Society. In these pro- 

 ceedings, and elsewhere in reports of Societies, varieties of MoUusca 

 not hitherto recognised in Britain are occasionally mentioned from 

 British localities. In such cases no descriptions are given, and unless 

 one is on the look out for them, the records easily evade observation. 

 Thus on p. 272 we have mention of SphcBvium covneum var. complanata 

 from Hollinwood. On p. 2'j'^ Hydvohia jenkinsi var. tuiuida is mentioned 

 from Tilbury Marshes, this is a tumid variety which we have seen in 

 Mr. Jenkins' collection, but it has not been described. On p. 275 

 Clausilia vugosa var. evasa is reported from North- West Yorkshire, 



