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150 INTRODUCED SPECIES. 
Iowa—Hardin co, (Keyes). Abundant on islands in Mississippi river, and by 
creek, Bellevue (Sargent). 
Michigan—Widely distributed throughout the state, and is tabulated by Mr. 
Walker for thirty-nine of the eighty-four counties into which the state is sub-divided, 
Minnesota—Found by Clearwater Lake, Wright co., by Mr. H. E. Sargent. 
Nebraska—Auchey reports it as rare in Dixon and Knox counties. 
Nevada—East slope of Sierra Nevada (Call). 
New Jersey—Quoted by Mr. M. Schick as common at Westville and West Park. 
New York—Dover Plains, Duchess co., Nov. 1889 (W. S. Teator) ; Greenwich, 
Washington co. (Binney and Biand); abundant, Mohawk Valley, ete., Herkimer 
co. (J. Lewis); Onondago co. (Beauchamp); Pittsford, Monroe co. (Walton) ; 
Richfield Spa, Otsego co., Aug. 1906 (Smith); New Lotts, Long Island (H. Prime) ; 
abundant about old mill ruins, Cazenovia (G. H. Clapp); Plattsburgh (Hudson) ; 
a Mill near Auburn, Apr. 1882 (I. C. Baker); Cayuga Lake Valley 
(Banks). 
Ohio—Cincinnati (Byrnes) ; Columbus, Franklin co. (Moores) ; abundant, Kent, 
Portage co. ; Akron and Hudson, Summit co. (Dean); Garrettsville (Luther). 
Oregon— Astoria (Hemphill). 
Pennsylvania—Allegheny co. (Stupakoff) ; Blairsville (Harn); swarming near 
Strawberry Mansion, East Park, Wissahickon, Nov. 1893 (Vanatta). 
Rhode Island—Pawtuxet River Falls, Pawtuxet (Perry); Stafford Lake, 
Tiverton (J. H. Thomson). 
Tennessee—IXnoxville, Knox co. (Andrews). 
Washington— Abundant in all the greenhouses of Seattle (P. B. Randolph). 
AUSTRALASIAN REGION. 
New South Wales—Darling Point, Lyndhurst, and elsewhere about Sydney 
(Cox); Rusheutter’s Bay (Brazier). 
Victoria—A bout the greenhouses of the Botanic garden, Melbourne, April 1905! 
(J. H. Maiden and W. Denison Roebuck). 
INTRODUCED SPECIES. 
In addition to the Zonitidw enumerated in the preceding pages, some 
others have been recorded as recently found in this country, purposely or 
accidentally introduced with plants or produce of various kinds, although 
there is no reason to suppose that they will ever become truly naturalized 
in this country. ‘They are— 
Hyalinia cantabrica Westerlund.—A form closely allied to or 
varietally identical with /7. alliaria, which inhabits Spain and has been 
found plentifully by the Rey. R. Godfrey in one of the hothouses in the 
Botanical Gardens, Edinburgh. 
Zonitoides minusculus Binney.—'l'his Nearctic species which Mr. 
B. B. Woodward has recently included in the British list and proposed 
to add to our native fauna, was found in 1883 by Mr. C. ‘IT’. Musson 
amongst moss in an orchid house, belonging to Mr. Thacker, Blue Bell 
Hill, Nottingham. 
It is a minute, whitish shell, scarcely 24 mill. in diameter, with four 
microscopically wrmkled and rapidly increasing whorls and a wide umbilicus. 
This species is diffused all over North America, from Alaska and its 
islands to the extreme south, and is also an inhabitant of Bermuda and of 
Jamaica and several other of the West Indian islands, 
