1 88 The Irish Natnralisf. September, 



Helix hispida, L.— Not very common : Rockwood, Ivissadill, Raglilv, 

 Glencar; var. alba, Glencar ; var. concinna, a dark red form, commou 

 on grassy ledges under the cliffs at the cave, Gleniff ; a few in 

 Glencar. It is curious that in Antrim and Down this form is the 

 one most abundant at or near the sea level, especially on short 

 sandy turf; the hispid form higher up or more inland. It was in 

 myriads— a form with small umbilicus— in valleys in the dunes at 

 Strandhill, 



H. rufescens, Penn.— More or less common at almost all localities. 

 Lissadill, Rockwood, Carrowmore, Knocknarea Glen, Strandhill, 

 Glencar, at fall ; Dromahaire, 1900. 



H. fusca, Mont. — On Luxtda, right under the spray of the waterfall at 

 Glencar -, rare in moss in Slish wood and below Doonee Rock. 



H. arbustorum, L. — This northern species has long been known to 

 live in Glencar about the falls. We found only immature dead 

 specimens at the lower fall after a keen search. Yet they were 

 fairly common there, partly grown (Chaster and Collier), September, 

 1900. They seem to prefer a high altitude in the Sligo district, as 

 A. \V, Stelfox found them swarming much higher up the ravine, 

 close to the cliffs, in July, 1901. We found them in profusion, both 

 young and old, on damp vegetation in both mouths of the great 

 cave in Gleniff, especially among Golden Saxifrage in the smaller 

 mouth. Here they live in deep shade ; the habitat, a narrow rift, 

 faces north-east, and as the altitude is about 1,400 feet, they get the 

 full benefit of the mountain mists and frequent "cloud-caps." 

 These alpine specimens, both type and vars. cincta, flavescem, and 

 fusca, are quite as large as the finest from Murlough Bay, Co. Antrim, 

 which live in sheltered damp woods, almost at sea level. In 

 England the northern forms of this species are usually smaller 

 than the southern (Adams, op. cit.), but our Irish specimens are 

 quite as large and fine as any Dover specimens we have seen. At 

 the cave they are associated with alpine plants, such as Arenaria 

 ciliata^ Saxifras(a aizoides, Sediim Rhodiola, Draba incana, Asplenium 

 viride. 



H. acutai Mull, — This seems to be the only xerophile on the coast near 

 Sligo, though Miss Warren {Joe. cit.) records H. ericeiorum and 

 li, intersecta from localities not much further west. We found it on 

 Knocklane dunes near Raghly, and the var. strigata on Strandhill 

 dunes, and at Cliffony, 1900. 



H. ncmoralfs, Iv— We did not find this as freely as on our previous 

 visit, 1900, except on the sandhills. As on the West Donegal 

 dunes, a good many white-lipped specimens were noticed, mainly 

 of the pale yellow form with translucent bands so common at 

 Bundoran. These were at Knocklane dunes. In myriads dead, and 

 abundant alive, and some calcreted as mentioned, at Strandhill, 

 where A. W. vStelfox found a nice scalariform specimen ; a few at 

 Rosses Point and Rockwood. At Annacoona, on the summit of the 



