List: word usually written using kana alone

rarely used kanji form  usually written using kana alone  noun  noun (generic) 

• Bactrian camel (Camelus bactrianus)

usually written using kana alone  noun  noun (generic) 

• silkworm moth, silk moth (Bombyx mori)

usually written using kana alone  noun  noun (generic) 

• wild silkworm moth (Bombyx mandarina)

usually written using kana alone  noun  noun (generic) 

• Nomura's jellyfish (Nemopilema nomurai)

usually written using kana alone  noun  noun (generic) 

• bearded seal (Erignathus barbatus)

usually written using kana alone  noun  noun (generic) 

• Ocellaris clownfish (Amphiprion ocellaris)

usually written using kana alone  noun  noun (generic) 

• redback spider (Latrodectus hasselti)

usually written using kana alone  noun  noun (generic) 

• widow spider (of genus Latrodectus)

usually written using kana alone  noun  noun (generic) 

• black widow spider (Latrodectus mactans)

usually written using kana alone  noun  noun (generic) 

• carrion crow (Corvus corone)