The sharp-tailed snake was known to range over the Canadian border (where it is considered endangered) on Vancouver Island and a few other small islands. It's now been found on the Canadian mainland in B.C.
http://www.whistlerquestion.com/article/20110811/WHISTLER12/308119965/-1/WHISTLER/snake-found-near-pemberton-a-first-on-canadian-mainland
http://www.piquenewsmagazine.com/pique/index.php?cat=C_News&content=Snake+find+1832
Well this is a very interesting post for me as I thought this snake was known from southern British Colombia where (I believed) they are thought of as relic populations from a time when they were more abundant in this area, and down to the southern sierra Nevada and the central coast of California where some individuals are actually a pail orange on the dorsal surface. contrary to belief the tail spine is not toxic and is used to subdue prey by holding it still. Fairly recent studies appear to have shown specific level differences within this species.
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