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Show 221 MAMMALS The immense size, changing levels and recession of Pleistocene Lake Bonneville have had important influences on the distribution and subspeciation of small mammals of the Great Salt Lake study area. The most pronounced effects are found in mammals of sedentary habits or those narrowly restricted ecologically, such as pocket gophers. Seven distinctive subspecies appear to have evolved in the Great Salt Lake area. Because the Lake is no older than 2,000 years, these mammals, which are considered endemic to the islands in the Lake, are known to be no older. A total of 64 species or subspecies of mammals have been identified from the study area. The following is a list of those mammals accompanied by maps, Figures 43- 56, indicating their location in the Great Salt Lake area. 1. Vagrant Shrew; Sorex vegrans montioola Merriam ( common) 2. Vagrant Shrew; S. V. obscurus Merriam ( common) 3. Little Brown Bat; Myotis luoifugus oarissima Thomas ( common) 4. Big Brown Bat; Eptesicus fusous pallidus Young ( common) 5. Horay Bat; Lasiurus oinereus oinereus ( Beauvois) ( common) 6. Long- eared Bat; Pleeolis townsendii pallescens Miller 7. White- tailed Jackrabbit; Lepus townsendii townsendii Backmani ( common) 8. Black- tailed Jackrabbit; Lepus oalifornious desertioola Meams ( common) 9. Mountain Cottontail; Sylvilagus nuttallii grangeri ( Allen) ( common) 10. Pigmy Cottontail; Sylvilagus idahoensis ( Merriam) ( common) |