Kanagawa Prefectural Museum of Natural History is going ahead with the construction of data base for the underwater photographs of fishes taken by divers. In this report, we made a list of fishes in the coast of Atami, Sagami Bay, making use of the data base. Twenty orders, 83 families, 267 species and some unidentified species were recognized by analyzing of 1781 photographs.

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The alpheid shrimp fauna in Kanagawa Prefecture was studied, based on site collections, deposited materials of museums, and previous litratures.
Totally, 27 species were recognized. of these, 7 species were newly recorded from the Prefecture, and 16 species were northernmost in Japan. 70% of the alpheid shrimp species distributes in either the West Pacific or Indo-West Pacific, and 30% are endemic to Japan or Japanese adjacent waters.

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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 areas along the middle reaches of Sakawa River, Kanagawa Prefecture. These populations were identified on the basis of the body-color type and length of hairs on walking legs of large individuals. As a whole, DA populations were distributed in the areas along upper reaches and BL populations in those along lower reaches. The boundaries between BL and DA populations were on Shoubu and Hatsusawa in Hadano City, the ridge of Mt. Matsuda in Matsuda Town, and Mukouhara, Yamakita and Hirayama in Yamakita Town. Mixed populations were found at Hatsusawa and Mukouhara.

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