GEOGRAPHICAL DISTRIBUTION. 
Moll. 67 
PHYSIOLOGY. 
Aplysia : blood and lymphatic gland ; Cu^iNOT (1). Cellulose in Mol- 
lusca ; Ambronn. Colour of Aplysiidce ; Garstang. Colouring matter 
of Aplysia ; Saint-Loup. Colour in Avion ater ; Gain. Purple of 
Purpura lapillus : nature and use ; Letellier (1 & 2). Colouring and 
banding in Snails; Williams (3). Chemistry of the mid-gut in Helix 
pomatia; Levy. Ciliary motion in gills and palps of Bivalves ; M’Alpine. 
Function of cerata of Nudibranchs; Herdman, 
TERATOLOGY. 
Tumour in Anodonta ; Collinge (3). Helix aspersa : parasitic castra- 
tion ; Garnault (1). H. aspersa : cystic gonads ; Williams (1). H. 
nemoralis , abnormal peristome ; Balle (1). 
VARIATION. 
Variation in Mollusca ; Cockerell (3), Williams (4). Species varia- 
tion ; Foerste. Variation in Mollusca , &c. ; James. Aplysia : radula ; 
Garstang. Limncea peregra ; Taylor, 
GEOGRAPHICAL DISTRIBUTION. 
Land and Fresh- Water Mollusca. 
Fauna of mountain lakes ; Zschokke. 
I.— PALiEARCTIC REGION. 
Arionidce y with index; Pollonera (7). Shells ; Westerlund (1 & 3). 
1 . Septentrional Region. 
British Isles. — British Hydrobice ; Jenkins (1). Scotland: Physa 
acuta ; Jenkins (2). Haddingtonshire : Clausilia rugosa and Balea 
powersia ; Evans. Ireland : Mollusca ; Milne : shells ; Roebuck (5) : 
Helix lamellata ; Delap. Cumberland: Bulimus acutus ; Roebuck (1). 
Penistone: Zonites glaber ; Adams (4). Lancashire: Acme lineata , 
Helix aspersa , and H. lamellata ; Standen (1, 2, & 3). Puffin I. : 
land Mollusca ; Leicester. Pembrokeshire : Pupa ringens ; Fal- 
loon (1). Weymouth : Assiminea littorina ; Sykes. Derbyshire : 
shells ; Adams (2). Staffordshire : Helix fusca and H. lamellata ; Bur- 
rows. Oxfordshire : H. pisana ; Collinge (8) : Limax Jlavus , n. var., 
in Banbury ; id. (4). Eastern counties : shells ; Adams (5). Yorkshire : 
Losvthorpe and Driffield, shells ; Ross (1) : Limncea glutinosa near Hull ; 
Fierke : Mollusca noted at Bretton Park ; Nelson & Roebuck : Drif- 
field, shells ; Ross (2) : Ingleton, Clapham, aud district, land and fresh- 
water Mollusca ; Collinge (5) : Ingleton, presence of Avion subfuscus ; 
id. (6) : Kildale-in- Cleveland, Mollusca ; Hudson : Malham, Mollusca ; 
