Schueler, Fred. 2021. Obvious Snails. North Grenville Times, 3 Nov 2021. 
9(43):16 https://ngtimes.ca/obvious-snails/

"When a species has 'obvia' as its specific epithet, and it’s so 
conspicuous that you can survey its occurrence along a highway at 30 
km/h, the English name is obvious. Xerolenta obvia (conventionally 
translated as ‘Heath Snail’) lives in open, disturbed limey places with 
grasses and herbs, often in enormous numbers. It has a 'medium-sized (to 
19 mm), flattened shell, dull to slightly shining, white or grey-white 
with a single broad brown spiral band and paler, less distinct bands 
below that. It is native to Asia Minor and central Europe.' It was first 
discovered in Canada in 1969 near Bethany, along Hwy 7a and an abandoned 
railway, and at that time it was speculated to have been introduced 
there in the 1940s. Many other populations have since been found south 
and west of Peterborough..."

The newspaper took the co-ordinates of the sites mentioned out of the 
text -

"We’ve since found them along Hwy 43 from the 416 exit ramp across from 
the Walmart (45.03031° N  75.62856° W) to 325 m E of the median of the 
416 (45.02831° N  75.62207° W)."

"Breezy Heights Road, 5.7 km S Kinburn (45.34070° N 76.19390° W)" - 
https://karstaddailypaintings.blogspot.com/2010/04/breezy-heights-xerolenta.html

There is background, and photos, of the species at 
https://www.mollus.ca/canada-snails/geomitridae/xerolenta-obvia/ and 
scroll down to 2015 at https://www.mollus.ca/my-publications/ for "Forty 
years later: distribution of the introduced Heath Snail, Xerolenta obvia 
in Ontario, Canada (Mollusca: Gastropoda: Hygromiidae)." Check List 
11(4): 1711. [7 August 2015]. → doi: https://doi.org/10.15560/11.4.1711 
  The Montana quote is from 
https://fieldguide.mt.gov/speciesDetail.aspx?elcode=IMGASE0040

fred.
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          Frederick W. Schueler & Aleta Karstad
          Fragile Inheritance Natural History
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NatureMatch concentration game - https://naturematch.ca/
'Daily' Paintings - http://karstaddailypaintings.blogspot.com/
6 St-Lawrence Street Bishops Mills, RR#2 Oxford Station, Ontario K0G 1T0
   on the Smiths Falls Limestone Plain  44.87156° N 75.70095° W
(613)258-3107 <bckcdb at istar.ca> http://pinicola.ca/
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