The author checked on the occurrence of the exotic bivalve, green mussel (Perna viridis Linnaeus, 1758) around western coast of the Tokyo Bay, all over the Sagami Bay and the innermost area in Suruga Bay, central Japan. The surveys were carried out for 8 years, from 2001 to 2013. The mussels have been found at seven to nineteen stations of fourteen to forty-one stations, where the mussels lived in intertidal to subtidal zones. The occurrence ratio, the numbers of occurrence stations to that of investigated stations, varied from 0.34 (in the year 2001 and 2013) to 0.63 (2009). The occurrence stations of living mussels were mainly located at from the innermost to middle areas in Tokyo Bay, the mouth and the innermost areas in Sagami Bay and the innermost areas in Suruga Bay. In all stations with three exceptions, the mussels attached to the artificial substrata such as the concrete seawalls, the buoys, the fixed nets and ropes. With reference of previous study, it was conjectured that the mussels which arrived at near northern limit of their global distribution lay themselves on the almost lethal conditions of low temperature in every winter season.

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The larval exuviae of six Cicadidae species (Graptopsaltria nigrofuscata, Meimuna opalifera, Platypleura kaempferi, Tanna japonensis, Hyalessa maculaticollis, Cryptotympana facialis) distributed in the urban areas of Kanagawa Prefecture were morphologically studied based on the specimens collected in 2012-2013, and a key to species is proposed. To clarify the distinction points in the key, the morphometrical study was done on body, antennae, foreleg femora and postclypeus. We recognized the useful character states in shape, ratios and number of antennomeres, shape of fore femur and length/width of postclypeus. In general, these 6 species were separated into three groups by the number of antennomeres. Graptopsaltria nigrofuscata and H. maculaticollis have 7 antennomeres and are identified by the ratios of 2nd and 3rd antennomeres length, foreleg femora, and length/width of postclypeus. Meimuna opalifera and T. japonensis have 8 antennomeres and are identified by the ratios of 3rd and 4th antennomeres length and length/width of postclypeus. Platypleura kaempferi and G. fasialis have 9 antennomeres and are easily distinguished by the body size.

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A false cat shark, Pseudotriakis microdon de Brito Capello, 1868 (Carcharhiniformes: Pseudotriakidae) was first recorded from Sagami Bay on the basis of an immature male of 1,609 mm in total length. The specimen was collected at a depth of 330 m on March 23, 2013. This shallower depth record in Japan suggests that the shark migrates to shallower waters during early spring under low water temperature. The measurements and counts are given in detail.

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The ichthyofauna of Sagami Bay was surveyed on the basis of landed fishes on Misaki Fish Market. Although 593 fish species had been recorded since 1986, we newly added seven species in this report. Among the above seven species, Minous pusillus of them is new to the bay.

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