List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• African wildcat (Felis lybica)

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

• cockatiel (Nymphicus hollandicus)

usually written using kana alone  noun  noun (generic)  colloquial 

• eggcase (shell) of the greater argonaut
• greater argonaut (species of paper nautilus, Argonauta argo)

usually written using kana alone  noun  noun (generic) 

• red frog crab (Ranina ranina)

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

• blue shark (Prionace glauca)

search-only kanji form  idiomatic expression  usually written using kana alone  expression  noun  noun (generic) 

• carrot and stick, candy and whip

usually written using kana alone  noun  noun (generic) 

• Tinea translucens (species of clothes moth)

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

• dromedary (Camelus dromedarius)

usually written using kana alone  noun  noun (generic) 

• cone shell (Conus geographus)

irregular okurigana  usually written using kana alone  noun  noun (generic) 

• pea crab (any crab of the family Pinnotheridae)