ON THE LAND MOLLTTSCA. 
27 
Arionidae. 
Arion ater (L.).*—Frequent in gardens and woods. Yar. rufa 
(L.).—In gardens at Watford. Yar. albida , Roeb.—In gardens at 
Watford. 
A. hortensis , Eer.—Frequent in gardens, &c. In my own garden 
at Watford this species feeds freely on strawberries. 
Limacidae. 
Amalia marginata (Mull.).—Yernlam Hills. 
Limax flavus, L.—In cellars and about old bouses. 
L. maximus, L.—In gardens and woods. 
L. agrestis, L.—Yery common in gardens, meadows, and woods. 
In my own garden, after heavy rain, this species appears in 
immense numbers on the lawn, and, like Arion hortensis , is very 
destructive to strawberries. 
HeLICIDHD. 
Succinea putris (L.).—By the side of the River Gade, Swiss 
Cottage, Cassiobury Park. 
Vitrina pellucida, Mull.—Hear Oxhey Lodge ; Cassiobury Park ; 
Tunnel Woods ; Munden Park. 
Zonites eellarius (Mull.).—Common all round Watford, chiefly 
under flints and other stones ; Yerulam Hills. 
Z. glaber (Stud.).—Hear Oxhey Lodge ; Swiss Cottage and 
elsewhere, Cassiobury Park (under stones). 
Z. nitidulus (Drap.).—Hear Oxhey Lodge ; near Bushey Lodge. 
Z. purus (Alder).—Hear Oxhey Lodge; near Bushey Lodge; 
Otterspool; Cassiobury Park. 
Z. crystallinus (Miill.).—Hear Oxhey Lodge; Watford Heath ; 
Swiss Cottage and elsewhere, Cassiobury Park (in moss and under 
stones and fallen leaves). 
Z. fulvus (Miill.).—Hear Oxhey Lodge. 
Helix aculeata, Miill.—Swiss Cottage, Cassiobury Park (under 
fallen leaves). 
H. aspersa, Miill.—Yery common, especially in gardens. In my 
own garden this species climbs the stem and branches of the 
broom, in all states of the weather, and towards dusk a con¬ 
siderable number may usually be found attached to several of 
these shrubs, while not one can be seen on any other tree or shrub. 
H. nemoralis, L.—Cassiobury Park and elsewhere in the neigh¬ 
bourhood of Watford. Yar. libellula , Risso.—Cassiobury Park. 
Yar. eastanea , Moq.-Tan.—Cassiobury Park. The two varieties 
occur in the dells mentioned, associated with the type. 
JET. hortensis , Miill.—Cassiobury Park; near Park Street; Yerulam 
Hills. Yar. lutea , Moq.-Tan.—Yerulam Hills. Yar. inearnata , 
Moq.-Tan.—Cassiobury Park ; Verulam Hills. 
* The authorities within parentheses indicate that the species when first 
described was placed in a different genus, thus Arion ater was described by 
Linnaeus as Limax ater , while he described Limax fiavm under the generic name 
still applied to it. 
