OBSERVED m HERTFORDSHIRE. 
31 
Ancylus fluviatilis (Miill.).—Ditches of Diver Colne between 
Aldenham Abbey and Watford; Selby. Watford; Brett. Diver 
Lea near Sandridge; Griffith. 
A. lacustris (L.).—Ditches of Diver Colne near Watford; Selby. 
Ponds near Sandridge, very common.— Griffith. 
PUIM ONIFERA. 
Arioetdje. 
Arion ater (L.).—Ware ; Jeffreys. 
Limacid^:. 
Amalia marginata (Miill.).—Ware ; Jeffreys. 
Limax maximus, L. — Ware ; Jeffreys. 
L. agrestis, L.—Ware; Jeffreys. 
L. Icevis , Miill.—Ware ; Jeffreys. 
Helicidae. 
Succinea putris (L.).—Dv the sides of ditches near Diver Colne 
between Aldenham Abbey and Watford; Selby. Watford ; Brett. 
Marshy places bordering Diver Lea near Sandridge ; Griffith. 
Ware ; Jeffreys. 
S. elegans, Disso.—Ware ; Jeffreys. 
Yitrina pellucida, Miill.— Aldenham church-yard ; Selby. Woods 
near Sandridge, under moss ; Griffith. Ware; Jeffreys. 
Zonites cellarius (Miill.) — Watford; Brett. Woods near Sandridge, 
under moss ; Griffith. Ware ; Jeffreys. 
Z. glaber (Stud.).—Woods near Sandridge ; Griffith. Ware ; 
Jeffreys. 
Z. nitidulus (Drap.).—Watford; Brett. Woods near Sandridge ; 
Griffith. Ware ; Jeffreys. 
Z. purus (Alder).—Woods near Sandridge ; Griffith. 
Z. radiatulus (Alder).—Ware ; Jeffreys. 
Z. nitidus (Miill.).—Ware ; Jeffreys. 
Z.crystallinus(Mull.).— Aldenham church-yard; Selby. Watford; 
Brett. Woods near Sandridge ; Griffith. Ware; Jeffreys. 
Z. fulvus (Miill.).-—Ware; Jeffreys. 
Helix aculeata , Miill.—Symond’s Hyde, near Sandridge ; Griffith. 
IT. pomatia, L.—Hear Marford Bridge, Wheathampstead, by the 
road-side towards Welwyn ; Griffith. Ware; Jeffreys. 
U. aspersa,l&u)l .— Watford; Brett. Sandridge, common ; Griffith. 
Ware; Jeffreys. 
IT. nemoralis , L.—-Sandridge, common; Griffith. Ware; Jeffreys. 
H.hortensis, Miill.—Watford; Brett. Sandridge,common; Griffith. 
Ware; Jeffreys. 
U. a/rbustorum, L.—Between Sandridge and St. Albans, amongst 
nettles in the lanes; Griffith. Ware; Jeffreys. Yar. alpestris , 
Ziegl.—Ware ; Jeffreys. 
IT. Cantiana, Mont. — Hear Watford, common ; Selby ; Brett. 
Sandridge, common; Griffith. Ware; Jeffreys. Yar. albida, Tayl.— 
Sandridge; Griffith. 
