LAND AND FRESHWATER MOLLUSCA OF MAYO AND SLIGO. 27 
H. ericetorwm. The Heath Snail.—So numerous that on a 
moist day in summer it is difficult to avoid crushing them at 
every step as they crowd on the grassy pathways. 
H. rotundata. 'The Rounded Snail—Common everywhere. 
H. rupestris. The Little Wall Snail. Numerous on old walls. 
H. pygmea. The Pygmy Snail.— Generally distributed, 
although not numerous. 
H. pulchella. The White Snail.—Common. 
Bulimus acutus. The Banded Twist Shell.—Abundant on the 
sand-hills of Bartragh Island, and also on those of Enniscrone on ~ 
the Sligo side of the bay. 
Pupa ringens, Jeffreys.—Sparingly at Moyview and Killanley ; 
abundant in the old woods of Belleek Manor, the seat of Sir 
Charles Knox Gore, near Ballina. 
P. umbilicata. The Umbilicated Chrysalis Shell.—Common. 
P. marginata. The Margined Chrysalis Shell.—Hitherto 
I have only found the dead shells of this species once on the 
sandy shore of Bartragh, and on another occasion at Enniscrone, 
where I procured several, in company with Vertigo angustior, 
washed up on the sands by the little river flowing past the village. 
Vertigo antivertigo. The Marsh Whorl Shell.— Generally 
distributed. — 
V. pygmea. The Dwarf Whorl Shell.—Common. 
V. substriata. The Slightly-striate Whorl Shell.—A few speci- 
mens at Killanley only. 
V. angustior. The Narrower Whorl Shell.—I have found this 
rare shell in the marshy meadow at Killanley Glebe, and a 
few weathered shells on the margin of the river at Enniscrone. 
Mr. Gwyn Jeffreys only mentions two Irish localities for it, one 
in the Co. Clare and the other at Connemara in the Co. Galway. 
V. edentula. The Toothless Whorl Shell.—Under wet leaves 
in one of the woods at Moyview it is rather abundant. I have also 
found a few at Killanley. 
Balia perversa, vel fragilis. The Fragile Moss Shell.— 
Generally distributed. 
Clausilia rugosa, vel nigricans. The Dark Close Shell.— 
Abundant everywhere. 
Cochlicopa lubrica. The Common Varnished Shell.—Plentiful. 
Carychium minimum. The Little Sedge Shell—Numerous 
everywhere under moss, 
