従来, 我国で未開拓であった草食獣の糞分析に関して, その有効性を確認するために, ニホンジカを飼育し, 既知量のエサを与え, 排泄されたフンを分析した。与えた植物はススキ, アズマネザサ, シのバ3種であったが, フン中の植物片の同定は3種とも可能であった。量的評価に関しては, 餌と糞の組成は一致せず, ススキが過少に評価される傾向のあることが明らかになった。この点に注意をはらえば, 糞分析は草食獣の食性解析にとって非常に有効な方法となりうると考えられる。

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本邦産ハタネズミ (Microtus montebelli) を実験動物化するにあたり, この動物が自然排卵型かあるいは交尾排卵型に属するかを明らかにすることは計画生産を実施するに際して明らかにしておく必要がある。かかる見地から本報では本種の排卵様式について二・三の検索を行なった。
1.雄と交尾した雌は15頭中11頭 (73.3%) 排卵したのに対し, 交尾しない雌では29頭中2頭 (6.9%) しか排卵せず, 卵巣の組織学的観察結果とあわせて本種は交尾排卵動物であると思われた。
2.ハタネズミ卵子のcell stageは排卵 (推定) 後9時間で1-cell, 33～34時間で2-cell, 36～38時間で4-cell, 57～59時間で8～12-cell, 80～82時間でblastocystであった。
3.本種の排卵過程を検討し結果, 室内で計画生産の困難な理由の一つとして交尾しても排卵しない雌があること (15頭中4頭) および排卵しても異常卵が多いこと (11頭中7頭) が考えられた。

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Four wild adult bucks of sika (Cervus nippon) were caught by single gate box traps and radio-tracked by using three station and two portable Yagi antennas and three portable receivers (53.300-53.700 MHz), on Kinkazan Island from September to November 1976. Complicated mountain ridges caused to deflect radiowaves and extremely prevented accurate radio-fixes. Angle deflections were measured and several modifications were tried to get actual fixes. By using “observation-area curve method” (ODUM and KUENZLER 1955), home range sizes of two adult bucks were measured 6.5 and 19.0 ha, respectively. Others, however, were lacking enough numbers of activity loci for calculating them. All radio-marked bucks loitered away and their movement patterns were seemingly not stable. Further, two activity patterns, moving and resting, and daily rhythms of a buck were also recorded by radiotelemetry. It clearly indicates that this buck repeated both patterns over the day at time intervals of several hours.

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韓国産コウモリ類3種に対する核型分析結果は次の通りである。
1.コウライキクガシラコウモリRhinolophus ferrumequinum korai 2n=58, FN=60, 常染色体は, 中型: M型が2隻であり, 大型から小型まで26隻のA型になって居る。X染色体は大型のSM型であり, Yは小型のA型である。
2.モモジロコゥモリMyotis macrodactylus 2n=44, FN=50。この種は, 3雙の大型, 1雙の小型であるM型と中型から小型まで17雙のA型になっている常染色体を持っており, X染色体は中型であるSM型であり, Y染色体は小型のA型である。
3.コウライオオアブラコウモリPipistrellus savii coreensis 2n-44, FN=50。
木種の核型は, X染色体が中型のM型である事を除いては, 上記のモモジロコウモリM. mucrodactylusと同様に表われた。

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Myobiid mites of the genus Binuncus RADFORD, 1954, are specific parasites of the family Pteropidae. The occurrence of some mites of this genus on Pteropus bats distributed in Japan had been expected. The present authors examined Pteropus pselaphon LAYARD and Pteropus dasymallus yaeyamae KURODA deposited in the collection of National Science Museum (Hat. Hist.), Tokyo, and found a Binuncus mite on the both of them. This mite was identified as Binuncus (Binuncus) magnus (RADFORO, 1954), a parasite of Pteropus medius TEMMINCK from India. It was proved that B. (B.) magnus (RADROD) also occurred on Pteropus giganteus BRÜNNICH that had been introduced into Japan and kept alive for exhibition.

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Through the analysis on the official records from 1953 to 1974 of fiscal year, it can be pointed out that the total numbers, hunted with any purpose, of the wild boars, the bears and the deer increased in Japan. Both a linear regression (H=A+Bx) and an exponential increasing (1n (H+l) =1n ( (a+1) +bx) are well fitted in each species, and their increasing rates (B and b) are considerably high as compared with their natural birth rates. The author makes an attempt to find which prefectures have much trend of increasings. On each species, the average hunted number (H) and standard deviation (SD) of each prefecture is arranged on a line in logarithmic graphs. As to the wild boars, less increase rates, and samely smaller coefficients of variation, occur in higher hunted density regions, and greater rates do in the peripheries of the geographical distribution of the animals. The bears were hunted throughout all seasons as the harmful animals on forestory. In central Japan, more animals are hunted, but the trend of increasing is rather small. In north-east region and coastal prefectures of Japan Sea, very high rates of increasing are seen among the hunted numbers of the animals. Huntings of the sika deer are or were under strict limitation in some prefectures. The total numbers hunted in Japan, however, gradually increased. The curve of five-year moving average in logarithmic graph of each prefecture can be classified into five patterns. It shows nearly stationary in eight prefectures, and increases linearly in nine, convexly in four, and concavely in five. Decreasing patterns occur in seven prefectures, in which include those caused by hunting limitation. No geographical arrangement among these patterns is found.

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1971年から1976年にかけて, 香川県内で採集されたアブラコウモリの新産児 (89個体) の乳歯 (di2/3dc1/1dpm2/2=22) の脱落と永久歯 (I2/3C1/1PM2/2M3/3=34) の萠出について調査した。結果は次の通りである。
1. 乳歯の脱落は, 出生後14日令から始まり, 30日令で完了する。
2. 乳歯の脱落順序は以下のようである。
上顎: 第2乳臼歯→第1乳臼歯→ (乳犬歯・第1乳切歯) →第2乳切歯, 下顎: (第1乳切歯・第2乳臼歯) →第2乳切歯→第3乳切歯→第1乳臼歯→乳犬歯。
3. 永久歯の萠出は, 出生後8日令から始まり, 30日令で完了する。
4. 永久歯の萠出順序は以下のようである。
上顎: (第1大臼歯・第2大臼歯) → (第2切歯・第3大臼歯) → (犬歯・第2小臼歯) →第4小臼歯→第3切歯, 下顎: (第1大臼歯・第2大臼歯) →第1切歯→第3大臼歯→ (犬歯・第4小臼歯) → (第2切歯・第3切歯・第2小臼歯) 。
5. 乳歯脱落と永久歯萌出の完了期は巣立日令とも一致する。

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Studies on the bacula of paratype of Murina aurata aurata from Eastern Thibet and five specimens of Murina aurata ussuriensis from Japan were carried out. The form of the baculum is saddle-shaped and similar in the two subspecies. But there are some differences in the size and the detailed form between these subspecies. Baculum of M. a. ussuriensis is larger than that of M. a. aurata. The distal part of baculum slightly bends toward the ventral side in M. a. ussuriensis, but not in M. a. aurata. The distal and proximal part are more developed and larger as compared with the central part in M. a. ussuriensis. On the whole, the form of baculum in M. a. ussuriensis is uneven remarkably, on the other hand in M. a. aurata is less uneven.

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The deer box trap, having a frame of angle iron with the side and top of nylon net, was constructed and tested in the Kinkazan Island, Miyagi Prefecture, from September to November 1976. Twenty-one trap-days were required to capture a deer by five traps. By covering a trap with a sheet, trapped deer were calmed without injury. Two traps set on the frequent deer trails were more effective in capture.

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