. The Canadian field-naturalist. 324 The Canadian Field-Naturalist Vol. 91 1. N. c. cinerea Figure ]. The range of the wood rat in Alberta. Hatching and cross-hatching indicate the weli-estabhshed ranges of Neoloma cinerea drummondii and N. c. cinerea. respectively (after Soper 1964). Extralimital occurrences are depicted by the following symbols: n, Brownvale (Kelsall 1971); A, Ponoka (Soper 1964); Oi, Smoky River; O2, Strathmore; O3, Empress. Abbreviations designate major urban centers. east of Calgary. This specimen was apparently collected by W. Sturm, a resident of Strathmore, in April 19
. The Canadian field-naturalist. 324 The Canadian Field-Naturalist Vol. 91 1. N. c. cinerea Figure ]. The range of the wood rat in Alberta. Hatching and cross-hatching indicate the weli-estabhshed ranges of Neoloma cinerea drummondii and N. c. cinerea. respectively (after Soper 1964). Extralimital occurrences are depicted by the following symbols: n, Brownvale (Kelsall 1971); A, Ponoka (Soper 1964); Oi, Smoky River; O2, Strathmore; O3, Empress. Abbreviations designate major urban centers. east of Calgary. This specimen was apparently collected by W. Sturm, a resident of Strathmore, in April 1970 and was subsequently donated to the Provincial Museum and Archives of Alberta, Edmonton (catalogue number ). More precise locality data are not available. Previous extralimital extensions for the Bushy- tailed Wood Rat east of the Canadian Rocky Mountains have been reported by Nero (1956) at Govenlock, Saskatchewan (in the extreme south- western corner of the province), Soper (1964) at Ponoka, and Kelsall (1971) at Brownvale (near the town of Peace River, Alberta). The species appears to be established on the prairies in areas in, or adjacent to, major river valleys proximate to the Rockies. The records from Govenlock, Ponoka, Brownvale, Smoky River, Empress, and perhaps Strathmore document occurrences near the Milk, Battle, Peace, Smoky, South Saskatchewan, and Bow Rivers, respectively. The rocky exposures found along these rivers provide suitable habitat for the wood rat on the prairies. In those instances where the Bushy-tailed Wood Rat has been captured some distance from a river valley, it has been found inhabiting an occupied or abandoned human dwelling, a habit that is common for the wood rat (Rand 1948; Banfield 1974). It would be of considerable interest to establish the extent of the range of the wood rat on the prairie areas of Western Canada by a collection program along the major river valleys. Acknowledgments We thank N. Panter, former Curator, and W.
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