The Scottish Naturalist. 165 



and not uncommonly visiting the sugar placed there by 

 Lepidopterists. 



Vitriua pellucida Mull. — Common everywhere, especially 

 among decaying leaves. 



Succinea putris L- — Appears to occur throughout Scotland, 

 but is not, in my experience, very common. All the specimens 

 I have found are very small. It frequents plants and stones v 

 near water. I have taken many specimens out of the dead 

 grass of the overhanging bank of a pond in winter. At this 

 season the mouth of the shell was closed by a diaphragm such 

 as may be seen in many species of Helix. 



S. elegans Risso. — Occurs throughout the country, but is either 

 not common, or is passed over as the preceding. It occurs in 

 similar localities. Var. ochracea, Shetland. 



S. oblonga Drap. — Very rare. Said to have been found near 

 Glasgow. It inhabits sandy places near the sea. 



Zonites cellar ins Mull. — A common species everywhere, 

 frequently under stones. I have found the var. complanata and 

 compacta, near Perth. 



Z. alliarius Mull. — Equally common as the last. Var. 

 viridula, Shetland. 



Z. nitidulus Drap. — The commonest of the genus, occurring 

 in all sort of places and attaining a considerable elevation. 



Var. nite?is: more common than the type, and frequenting 

 dryer places. 



Z. purus Alder. — In woods, under stones, and among dead 

 leaves, not very uncommon throughout the country. The var. 

 margaritacea seems to be commoner than the typical form. 



Z. radiatulus Alder. — In woods among dead leaves, but not 

 very common. It occurs throughout the country. 



Z. nitidus Miill. — Though apparently occurring throughout 

 Scotland, Z. nitidus is not a common species. It inhabits 

 woods, where it is found among dead leaves in damp shady 

 places. From its love of moisture it is also to be found on the 

 banks of lakes and ditches and it is said not to be an unfrequent 

 inhabitant of orchard houses. 



Z. excavatus Bean. — This is the rarest of the genus, and 

 though widely distributed, is local, and not common. It has 

 occurred in the south and south-west of Scotland, near Glasgow, 

 in Argyleshire, Bute, Aberdeenshire and Ross-shire. It inhabits 

 the same kind of places as the two preceding species. 



