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1986年5月28日,在吉林省延边地区和龙县长红林场 82km处(东径42°25′,北纬128°30′,海拔1050m)的针阔叶林混交地带小溪旁树下,捕到了一只外形颇似小家鼠的雌性小型鼠(附图).体重11.7g,身长6.5cm,尾长10.8cm,尾长是身长的1.66倍.尾毛稀短,尾鳞清晰可见,尾端无毛束.耳较小,耳长1.0cm,耳基不呈管状.该鼠后足长1.7cm,具有发育正常的五趾,仅第一趾变短,趾端达趾之茎部。前足长0.6cm,后足比前足长2.8倍.鼠的头骨呈梯型,前窄尖后宽圆.听泡十分发达,乳突异常之大,约占头骨长的1/3.枕大孔位于
On May 28th, 1986, under the stream near the creek mixed with needle-broad-leaved forest at 82km of Changhong Forest Farm, Helong County, Yanbian District, Jilin Province (Eastern Path 42°25′, Northern Latitude 128°30′, Elevation 1050m), A small female mouse with a shape resembling a small house mouse was captured (drawing). It weighed 11.7 g, was 6.5 cm in length, had a tail length of 10.8 cm, and a tail length of 1.66 times its length. The tail hair was short and the tail scales were clearly visible. Hairless bundles at the tail. Ears smaller, ear length 1.0 cm, and auricular base not tubular. The rat’s posterior foot is 1.7 cm long, with a normally-developed five-toe, only the first toe is shorter, and the toes end up to the stem. . The forefoot is 0.6cm long and the hindfoot is 2.8 times longer than the forefoot. The rat’s skull is ladder-shaped, with a narrow anterior cusp and a wide circle. The auditory bubble is well developed and the mastoid procession is unusually large, accounting for approximately 1/3 of the skull’s length. lie in