北海道におけるウスリ-ド-ベントンコウモリMyotis daubentoni ussuriensis Ognev,1927の新産地と,外部及び頭骨形質の変異性
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概要
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In the northern, eastern and central Hokkaido and near Sapporo, 35 male and 23 female Daubenton's bats, <I>Myotis daubentoni</I> (KUHL, 1819) were captured, and constitute new records. Sexual differences and geographic variations in the external and skull dimensions were examined in these specimens; further, the dimensions of the bats from Hokkaido were compared with those of the Eastern Daubenton's bats, <I>M. d. ussuriensis</I> OGNEV, 1927 from areas near Japan. No sexual difference was recognized in the Hokkaido's bats, but there were geographic variations in the length dimensions of skull and the height of brain-case between the regional populations. No significant difference was found between the Hokkaido's bats and those from neighbouring regions in all of the dimensions except the height of brain-case. Thus, the Hokkaido's bats concerned were identified as <I>M. d. ussuriensis</I>.
- 日本哺乳類学会の論文
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