DISTRIBUTION. 
Moll. 39 
28. American Region. 
Vallonia excentrica , parvula , perspectives, n. spp. ; Sterki (360). — 
Relationships and distribution of the TJnionidce\ Simpson (323). — Mollusca 
of N.W. Louisiana and Harrison County, Texas ; Vaughan (386). — 
Arkansas : List of species ; Sampson (314). — Indiana : shells of Henry 
Co.; Pleas (298). — Michigan: notes on the shell-bearing Mollusca ; 
Walker (395). — New Mexico : shells from the sand of a dry salt lake at 
Eddy ; Sterki (362). — North Carolina : Polygyra subpalliata, n. sp. ; 
Pilsbry (290). 
29. Californian Region. 
Vallonia cyclophorella , n. sp. ; Sterki (360). — Arizona : Anodonta 
mearnsiana , n. sp. ; Simpson (324). — Colorado : shells of William’s 
Cafion ; Sampson (313).— Nevada: Amnicola micrococcus, n. sp.; Pilsbry 
in Stearns (358). 
80. Canadian Region . 
Canada : Vallonia albula , n. sp. ; Sterki (360). — Gasp6 district : a 
list of species ; Hanham (147). — British Columbia: shells from Laggan, 
Rocky Mts. ; Taylor (375). 
MARINE MOLLUSCA. 
1. Arctic Province. 
Fauna of the Russian Arctic Sea ; Herzenstein (163). 
2. Boreal Province. 
Norway : Mollusca of Trondhjem Fiord ; Norman (262). 
3. Celtic Province. 
British Isles : additions [mostly varr.] to Somerville’s list; Marshall 
(224). — Cornwall : Mollusca found near Falmouth ; Vallentin, J. Inst. 
Cornwall, xi, pp. 319-324. — Devon : list of Mollusca at Teignmoufch ; 
Byne (56). — Essex : living examples of Crepidula fornicata ; Crouch 
(92). — Scotland : Mollusca of the upper portion of Loch Linnhe ; 
Knight (188). — North Sea Cephalopoda collected on the Norwegian 
Expedition ; AppellOf (12). — Sweden : Summary of Cephalopoda : 
LOnnberg (215) 1891. — Holland : Acanthopsole coronata, Forbes, and 
Amphorina aurantiaca , A. & H., added to fauna ; Loman (214) : Cepha- 
lopoda ; Hoek (168). 
