姥桜[ubazakura] faded beauty
山姥[yamauba] mountain witch
姥捨て[ubasute] practice of abandoning old women (practise)
姥捨て山[ubasuteyama] mountain where old women were abandoned
姥貝[ubagai] Sakhalin surf clam (Pseudocardium sachalinense)

姥鮫[ubazame] basking shark (Cetorhinus maximus)
姥目樫[ubamegashi] ubame oak (Quercus phillyraeoides)
姥彼岸[ubahigan] double weeping rosebud cherry (Prunus pendula)
姥魚[ubauo] Aspasma minima (species of clingfish)

鱘鮫[chouzame] sturgeon (Acipenser mikadoi)
鰐鮫[wanizame] ferocious shark
鮫膚[samehada] rough skin (like that of a shark)
鋸鮫[nokogirizame] saw shark (esp. the Japanese saw shark, Prietiophorus japonicus)
青鮫[aozame] shortfin mako shark (Isurus oxyrinchus)

鮫皮[samegawa] sharkskin
小判鮫[kobanzame] remora
葦切鮫[yoshikirizame] blue shark (Prionace glauca, species of circumglobal requiem shark)
角鮫[tsunozame] dogfish (any shark of family Squalidae)