Distribution of BL (bluish body-color type) and DA (dark body-color type) populations of the Japanese freshwater crab Geothelphusa dehaani (White) was investigated in the middle reaches of the Tama River, mainly in Hachiohji City in the south-west area of Tokyo. On the right bank of the Tama River, DA populations were found in the upper streams of and on the north of the Asakawa River which is one of the major tributaries of the Tama River. On the other hand, BL populations were distributed on the south of the Asakawa River, including Tama Hills. On the left bank of the Tama River, BL populations were found at Todoroki, Meguro-ku and Ohkura, Setagaya-ku , and a DA population was found at Ohsawa, Mitaka City, Tokyo. A DA population was also found at Miyadera, Iruma City, Saitama Prefecture. One Mixed population was found at Tatemachi, Hachiohji City.

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Fossil specimens of Saxidomus purpurata (Bivalvia: Veneridae) collected from Holocene marine deposits of Ofuna Shell Bed at Okamoto of Kamakura City were analyzed to investigate habitat and shell morphology. The fossil molluscan assemblage consists of several species and shows inner-bay rocky bottom community. Ten shell variables were measured and standardized by shell length. Canonical discriminant analyses were carried out with the standardized nine variables and compared among the other population collected from Southern Kanto District. The result of discrimination suggests that the shells of population at Ofuna are morphologically similar to those of boring population at Tateyama. The similarity of shell morphology should be caused by the same boring life mode.

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A literature survey was carried out for bryophytes reported from Kanagawa Pref., Japan. In the amount, 357 species of Musci, 150 species of Hepaticae and 7 species of Anthocerotae are recorded.

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Two species of Agaricales, new to Japan, are collected in Kanagawa Pref., central Honshu, and described here with illustrations: 1)Cortinarius bibulus, forming a small, dark violaceous basidioma with a hygrophanous pileus and pale violaceous lamellae, was collected on the ground under Carpinus tschonoskii in Kawasaki-shi, Kanagawa-Prefecture; 2) Entoloma farlowii, having a small, vivid orange basidioma, was found on ground in Odawara-shi, Kanagawa-Prefecture. Japanese materials differ from North American E. farlowii in posessing much smaller (pileus 4-18 mm broad), reddish orange (not yelowish) basidiomata and forming slightly larger basidiospores (9-11.5 x 6.5-8 μm).

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The distribution of Paecilomyces cicadae, a cicada-nymph-pathogenic fungus, in Kanagawa prefecture was researched in the literature, preserved museum specimens and author’s field collections. Kanagawa prefecture lies on the southwest border of Tokyo on the main island of Japan, Honshu. Forty-four records in 16 collection areas of this fungus from 1980-2001 were identified, and 15 of the 16 areas were hills (40-200m above sea level). Meimuna opalifera was identified as a dominant host insect of this fungus. Conidia were cylindrical, 4.4-9.0 x 2.2-3.9μm, and produced in chains from phialides, flask-like in shape, on potato dextrose agar plates under 14 hours: 10 hours light: dark photoperiod at 25 ℃.

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