夷国[ikoku] land of the barbarians
夷人[ijin] barbarian
夷俗[izoku] customs of the barbarians
夷狄[iteki] barbarians

蝦夷[ezo] peoples formerly of northern Japan with distinct language and culture (i.e. the Ainu)
勤皇攘夷[kinnoujoui] loyalty to the emperor and expulsion of the foreigners
蕃夷[bani] savages
攘夷[joui] expulsion of the foreigners

蝦夷[ezo] peoples formerly of northern Japan with distinct language and culture (i.e. the Ainu)
青竜蝦[shako] mantis shrimp (any marine crustacean of order Stomatopoda, esp. the species Oratosquilla oratoria)
車蝦[kurumaebi] kuruma prawn (Marsupenaeus japonicus)
蝦蟆[hikigaeru] toad (esp. the Japanese toad, Bufo japonicus)
蝦虎魚[haze] goby (fish)

竜蝦[iseebi] spiny lobster (esp. Japanese spiny lobster, Panulirus japonicus)
蝦夷松[ezomatsu] Yezo spruce (Picea jezoensis)
蝦夷菊[ezogiku] Chinese aster
蝦腰[ebigoshi] bent (with age)

鼺鼠[momi] giant flying squirrel (Petaurista leucogenys)
鼯鼠[momonga] small Eurasian flying squirrel (Pteromys momonga)
熬海鼠[iriko] dried sea slug
海鼠[namako] sea cucumber (Holothuroidea spp.)
栗鼠[risu] squirrel (excluding flying squirrels)

どぶ鼠[dobunezumi] brown rat (Rattus norvegicus)
黒鼠[kuronezumi] black rat
鼠の嫁入り[nezuminoyomeiri] light shower
鼠疫[soeki] plague

鼯鼠[musasabi] giant flying squirrel (Petaurista leucogenys)
鼯鼠[momonga] small Eurasian flying squirrel (Pteromys momonga)
アメリカ鼯鼠[amerikamomonga] southern flying squirrel (Graucomys volans)
蝦夷鼯鼠[ezomomonga] Pteromys volans orii (subspecies of the Siberian flying squirrel, endemic to Hokkaido)

大陸鼯鼠[tairikumomonga] Siberian flying squirrel (Pteromys volans)
大アメリカ鼯鼠[ooamerikamomonga] northern flying squirrel (Glaucomys sabrinus)
袋鼯鼠[fukuromomonga] sugar glider (species of flying phalanger, Petaurus breviceps)