. American animals: a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species. Mammals -- North America. False Lemming Mouse In Alaska there occurs another lemming (Lemmns tn'mncronatus) which is of a rusty colour and never changes white in winter. False Lemming" Mouse Plienacomys latimanns Merriam Length. inches. Description. Strikingly like the meadow mouse in external ap- pearance but with rooted molar teeth. Pale yellow cinnamon brown above with an admixture of black hairs on the back, below whitish gray; tail dark abo
. American animals: a popular guide to the mammals of North America north of Mexico, with intimate biographies of the more familiar species. Mammals -- North America. False Lemming Mouse In Alaska there occurs another lemming (Lemmns tn'mncronatus) which is of a rusty colour and never changes white in winter. False Lemming" Mouse Plienacomys latimanns Merriam Length. inches. Description. Strikingly like the meadow mouse in external ap- pearance but with rooted molar teeth. Pale yellow cinnamon brown above with an admixture of black hairs on the back, below whitish gray; tail dark above, white below. Range. Known only from Ungava, Labrador and the north shore of Lake Superior in Ontario. A somewhat larger species oc- curs in Labrador and Quebec (P. celatus] and others in the Northwest. The most interesting point in the history of this rare mouse is its close external re- semblance to the meadow mouse. For many years speci- mens in the National Museum passed as meadow mice until Dr. Merriam discovered that the back (molar) teeth did not grow continuously from the bottom as do those of the meadow mice, but possessed regular roots as in the red-backed mice, a matter of small popular interest but of great scientific importance as it shows us one more link in the chain of evolution. Little is known of the habits Lower jaw of Plienacomys, enlarged, to show rooted molar teeth. (After Miller.) mouse, though. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Stone, Witmer, 1866-1939; Cram, William Everett, 1871-. New York : Doubleday, Page & Co.
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Keywords: ., bookcentury1900, bookdecade1900, bookpublishernewyo, bookyear1904
