金糸雀[kinshijaku] canary (esp. the island canary, Serinus canaria)
亜麻糸[amaito] flax yarn
綾糸[ayaito] colored thread
一糸[isshi] string
一糸まとわぬ[isshimatowanu] stark naked

一糸一毫[isshiichigou] tiny amount
下糸入れ[shitaitoire] shuttle
菌糸[kinshi] fungal filament
結紮糸[kessatsushi] ligature
原糸[genshi] thread for weaving

糸蚯蚓[itomimizu] tubifex worm
蚯蚓[mimizu] earthworm
磯蚯蚓[isome] eunicid (any worm of family Eunicidae)
岩磯蚯蚓[iwaisome] Marphysa sanguinea (species of eunicid worm)
縞蚯蚓[shimamimizu] brandling (species of earthworm, Eisenia fetida)

かせ蚯蚓[kasemimizu] Epimenia verrucosa (mollusc)
蚯蚓蜥蜴[mimizutokage] worm lizard
蚯蚓鯊[mimizuhaze] flat-headed goby (Luciogobius guttatus)
バルカン蚯蚓蜥蜴[barukanmimizutokage] Iberian worm lizard (Blanus cinereus)

糸蚯蚓[itomimizu] tubifex worm
蚯蚓[mimizu] earthworm
磯蚯蚓[isome] eunicid (any worm of family Eunicidae)
岩磯蚯蚓[iwaisome] Marphysa sanguinea (species of eunicid worm)
縞蚯蚓[shimamimizu] brandling (species of earthworm, Eisenia fetida)

かせ蚯蚓[kasemimizu] Epimenia verrucosa (mollusc)
蚯蚓蜥蜴[mimizutokage] worm lizard
蚯蚓鯊[mimizuhaze] flat-headed goby (Luciogobius guttatus)
バルカン蚯蚓蜥蜴[barukanmimizutokage] Iberian worm lizard (Blanus cinereus)