Growth and development of 69 young in 15 litters of Microtus montebelli montebelli were studied in the laboratory for a period of 40 weeks after birth.
Newly born young was reddish pink and possessed mystacial vibrissae and fine bristles on the lips and chin. The dorsum was throughly covered with hairs by day 4 and juvenile pelage nearly completed by day 11.
The lower and upper incisors erupted through the gums at an average age of 4.8 days (4-6) and 5.3 days (4-9), respectively. Meatus opened between 6 and 9 days of age (mean 7.1) . Opening of the eyes occured from the sixth to ninth day of age, with a mean of 7.9 days. The digits were separated at the mean age of 7.1 days (7-8) in hand and 8.4 days (7-9) in foot.
The young began to eat solid food by day 9, but nursing continued to days 14 or 18.
Growth in total length, head and body length, tail length and ear length was most rapid in the first 3 weeks. Length of hind foot increased rapidly in the first 2 weeks and the growth of it essentialy completed by the fifth week in females and by the eighth week in males. From the fifth week, the mean values of weight, total length, head and body length and tail length of females were significantly (P≤0.05) less than those of males. From the fourth week, the mean values of hind foot length in females were significantly (P≤0.05) less than those of males. Sexual differences were not evident in length of ear and tail per cent.

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Stomachs of wild boars were collected from hunters in Hyogo, Kyoto and Osaka Prefectures from Oct. 1970 to '71. 134 contents were analysed and measured their volumes and weights. Some correlation is seen between the volume of content and the dry weight of stomach, namely body size. In the contents, vegetable items on the foods were found in 90% of the samples. They were chiefly fibrous tissue, subterrenean stems, roots and rhizomes. Acorns were scarcely found. Animal items appeared in 30% of the samples. Identification shows some earthworms, insects, frogs, birds (domestic fowls, probably wasted), and moles. Caloric estimation shows the animal lives under very poor nutritional condition. Even in the sample of the largest content, it provides only 500 kcal, which may be 12 to 15% of the daily need. The damages on agriculture by the animals in these prefectures are caused from this shortage of their foods, in the author's view.

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The author took part in the faunal research group of Kagawa University on Formosa and Ryukyu. This is the preliminaly report on some bats surveyed in these areas. My collecting trip tarred out from July 20 to August 29, 1970. About 4 families 6 species of CHIROPTERA obtained were as follows;
Family PTEROPODIDAE: Pteropus dasymallus yayeyamae KURODA, 1933
Family RHINOLOPHIDAE: Rhinolophus (?) luctus formosae (SANBORN, 1939)
Rhinolophus monoceros ANDERSEN, 1905
Family HIPPOSIDERIDAE: Hipposideros armiger HODOGSON, 1835
Family VESPERTILIONIDAE: Pipistrellus abramus TEMMINCK, 1840
Miniopterus schreibersi KUHL, 1819

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Lutronectes whiteleyi GRAY, 1867, based on two young specimens collected from Hakodate, Hokkaido, Japan, seems to be extinct in the native land, and no specimens have been known in Japan.
While studying the river otter of Japan, the author was attracted his attention by an adult rough skeleton of the subgenus Lutra in the mammal collection of the National Science Museum, Tokyo. Unfortunately the locality of the specimen is uncertain, but there is little doubt that it was collected at the beginning of the Mei ji era, nearly 100 years ago, in the territory of Japan at that time, that is Hondo or Hokkaido. As the specimen is evidently different from the otter of Hondo, the locality is inevitably estimated as Hokkaido.
This estimation coincides with the result of identification of the specimen as Lutra whiteleyi based on strong similarities to OGNEV's adult specimen from Nemuro, Hokkaido, and dissimilarities to the most of the named forms of the subgenus Lutra, in several cranial measurements.
If this identification is correct, whiteleyi seems to be a well established taxon of Lutra lutra group characterized by relatively narrow mastoid breadth and shorter muzzle (Table 6, F and G) .
An opinion that whiteleyi covers whole populations of the Japanese otter, proposed by Pococx (1931), the present author (1949), etc., is not correct. L. whiteleyi must be confined to the Hokkaido population.

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