ノネコの日周活動を知るため, 福岡県の離島, 相の島において, ラジオ・トラッキング法と直接観察法を用いた調査を行なった。発情したオスを除いて, ノネコは1日のうちの大部分を休息に費やした。高いアクティビティーは日没時と日の出時項にみられ, この薄明薄暮型のパターンは, 個体間でも, 季節的にもかわることはなかった。また, ノネコは, 夏にはより夜行性, 冬にはより昼行性の活動を行ない, この変化は気温と強い関係をもっていた。すなわち, 気温が高くなるにつれて, 活動時間は昼間から夜間へと移っていた。また, 雨や発情期もネコの活動に影響を与えていた。ノネコのアクティビティーのこれらの特徴とそれに影響する要因を, 他の食肉目と比較して議論した。

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ホンドタヌキ, Nyctereutes procyonoides viverrinus TEMMINCK, の仔の成長過程と育児行動について, 飼育下において観察をおこなった。仔は30日令で離乳した。30日から80日令にかけ, 仔の行動様式は急速に発達した。80日から仔は親から徐々に独立し, 150日令で親と同じ体重となった。
仔が80日令に達するまで, 雄親は雌親と同様に育児に大きく関与していた。

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Classifications of the Japanese bats (Table 1) contained within the socalled Siebold's specimens preserved in the Rijksmuseum van Natuurlijke Historie, Leiden were reexamined. On these specimens differences of classification, sex and adult or young between the descriptions in the catalogues of JENTINK (1887) and (1888) and the observations of the present author were summarized in Table 1, and the preserved conditions of these specimens were also added in this table. The main differences were as follows : The specimens of number 15 and 16, and also number 22 and 23 are distinct individuals respectively against JENTINK (1887) and (1888) . The number 26 labeled as “d” but unknown in JENTINK (1886), seems to be the skull of skin specimen of the number 25. The bat of number 21 is Nyctalus noctula from Europe, not N. lasiopterus from Japan. The number 22 is Nyctalus leisleri from Europe, not Pipistrellus abramus from Japan. The specimens of number 35 and 36 are Pipistrellus abramus from Japan, not P. pipistrellus from Japan.

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名古屋市緑区の農地に散在する休耕地に優占的にみられる, アカネズミとハツカネズミの繁殖活動を調べた。
アカネズミの主要な繁殖期は3月から5月, 9月から12月までの, 春と秋の年2山型であった。またハツカネズミは, 5月から10月まで捕獲できなかったが, 捕獲資料から, 少なくとも10月から5月まで繁殖活動が行なわれたと考えられ, また, 周年繁殖も可能であろうと考えられた。
ハツカネズミの正常な1腹の平均胎仔数 (6.0頭) は, アカネズミのそれ (4.6頭) よりも有意に大きかった。これはハツカネズミと較べて, アカネズミの1腹胎仔数の季節変化が大きく, 秋よりも春で小さいことと関連していた。
繁殖期間の長さ, 1腹胎仔数という点で, 繁殖能力はアカネズミよりもハツカネズミでより大きいと老安られた。

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Territorial behavior of the Japanese serow (Capricornis crispus) was studied in Kusoudomari, Wakinosawa Village, Aomori Prefecture, from March 1976 to December 1982. Inhabited ranges of adult males and females were overlapped in many cases, and males expelled other males, and females did the same, all the year around. Severe chase of a serow against an intruder was often observed. This behavior has been seen as a male against a male, a female against a female, an adult male against a male yearling, and an adult female against a two year old female in cases when they encountered with others in their own home range overlapped with others. This sort of chase has not been seen between an adult male and a female, an adult male and a female yearling, and an adult female and a male yearling if they en-countered in similar situations. Consequently it seems that territorial exclusion only appears against other serow of identical sex. Serows' territory exists bascally for protecting their own feeding areas, and for keeping stable pair-bond. They do not show tendency of having a united territory of family like groups or pairs. Territorial protection and dispersal of youngs away from it might be for stability of serow's population density.

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Total 182 wild wood mice, Apodemus speciosus, were collected with snap traps during the period from August 1981 to January 1983 at Miasa village (alt. 830 m) in Nagano Prefecture. Their hearts were dissected and separated into the right (RVW) and the left (LVW) ventricular walls. Ratio of the right ventricular weight against the total ventricular weight (RVW/TVW) was obtained and used as an index of the right ventricular hypertrophy. The values seemed to be related to the seasonal changes of air temperature in the animal habitat.
The results are as follows : TVW, LVW, RVW and RVW/TVW of the wood mice collected in late autumn and winter were apparently greater than those collected in summer. From this study, it became clear that the cause of hypertrophy in cold seasons was the ventricular hypertrophy in both sides, particularly, hypertrophy was more progressed in the right ventricles.
Those changes of weight are considered to be a physical aspect caused by the metabolic adaptation to the seasonal temperature changes, especially to the low temperature in late autumn and winter.

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