82 JOURNAL OF CONCHOLOGY. 



Slime Spinning by Arion hortensis. — On the 27th 

 of May, Mr. A. E. Ebdell of Ripon sent me a beautifully 

 marked specimen of the var. rufescens of this species, found 

 near that place. I was much interested in observing the 

 animal, which was about an inch long, spin a thread of slime. 

 Being placed on a flat paper-knife it walked straight off it, 

 seemingly into the air, and even while the end of its tail was 

 the only part in contact with the paper-knife it maintained its 

 horizontal position, swinging to the perpendicular one on finally 

 quitting it and becoming suspended. It then spun a thread of 

 about four inches, and when contact was broken on its reach- 

 ing a support, the thread immediately shrunk into a minute, 

 scarcely visible point of slime. — Wm. Denison Roebuck, Leeds, 

 June, 1883. 



Limnsea peregra var. stagnaliformis n. v. (pi. i., fig. 2, 3). 

 Shell somewhat fusiform in shape, the last whorl large, 

 making about 4-5ths of the total length. Length, 35 

 mill., breadth, 18 mill. Length of aperture, 25 mill., 

 width, 13 mill. 



This striking variety I noticed a short time ago in 

 the fine collection formed by the Rev. W. C. Hey, 

 of York. Its resemblance at the upper aspect to the 

 short spired variety of Z. stagnalis is very striking, and 

 suggested to me the application of its appropriate name. 

 It was found by Mr. Hey in the village pond at Buck- 

 ton, near Flamborough. All the peregra found 

 associated with it were of the same form, but of a 

 smaller size. 



Mr. Hey, in forwarding the drawings obligingly 

 made by him at my request, remarks^" Its size is very 

 remarkable, as the large specimens of L. peregra 

 generally belong to the ampuUaceous form, connecting 

 this species with L. aiiricidaria, but the example before 

 us rather approaches L. stagnalis in the length of the 

 spire and comparative narrowness of the aperture. — 

 J. W. Taylor, June 25th, 1883. 



J.C, iv., July, 1883. 



