78 JOURNAL OF CONCHOLOGY, VOI,. l6, NO. 3, JANUARY, I92O. 



record of this variet)-, by Mr. J. ^V. Taylor from Swillini^ton, near 

 Leeds. I have always found Aplexahypnoriini a very erratic species ; 

 you may find it in plenty one season, and in the next not a single 

 specimen. Planorbis contortus is another species sometimes found 

 very pale, if not quite white, also covered with confervoid growth. 

 I found this variety in the Peak Forest Canal, at Marple, in 1876. 



I find in my notes for April, 1876, that I went to a field near 

 Piatt Church, Rusholme, where there were four ponds. In pond 

 no. 1 I could only find SphcErmin conicu/ji. In no. 2 Planorbis vor- 

 tex^ P. coniphDiatus, and some rather small Limncea pereger, with the 

 spire much decollated. In no. 3 P. voj-tex and P. complanatus, very 

 fine, and some very good specimens of Physa fcvdinalis ; also L. 

 pereger, but very much larger and finer than in pond no. 2, and not 

 decollate. In pond no. 4 were P. vortex and L. stagnalis, very 

 abundant. Being only a beginner, I did not notice Avhether there 

 was any connection from one pond to another, and I could not 

 account for L. pcreger being decollate in one pond and not in the 

 other. 



Soon after I commenced collecting, 1 went with one of my brothers 

 to Belgium, and on the outskirts of Antwerp, after heavy rain, I found 

 very large specimens of Succiuea piitris, and was at that time very 

 much surprised to find that the animal covered the shell almost com- 

 pletely. This is why the shells of Siiccinea, Vitrea, and HeliLario?i 

 are always so clean and bright. Whilst collecting in a ditch between 

 the lines of earthworks that had been made for the defence of Bruges 

 I had an experience which might have been very unpleasant. A gen- 

 darme, who was on duty on the top of the embankment, seeing me 

 with my dredge in the water, went up to my brother who was watch- 

 ing me, and spoke to him in a patois he could not understand. 

 Scenting trouble, he just pointed to me, and then to his own head, 

 which seemed so to satisfy the gendarme that he walked away, evi- 

 dently believing that I had a " slate off." 



As regards Helix ncmonilis and H. hortensis I have at times found 

 these two species living together on the same bank or hedgerow, but 

 not very often. The case I remember best was at Mappleton, in 

 Dovedale, when in 1892 I found large quantities of both species on 

 the way to Thorpe Cloud. At Croyde Bay, in North Devon, I found 

 H. hortensis very plentiful on one side of the lane, facing south, going 

 from the village to the sea, but no II. ncinoralis ; but on the other 

 side H. ne/noralis sparingly, but no H. hortensis. From this one 

 would conclude that II. nenioralis prefers more shade than H. hor- 

 tensis, although in some places I have found H. nenioralis in quantity 

 with little or no shade, especially on the sand-dunes in Ireland. 



