List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Prunus persica var. densa (Chinese variety of peach)

usually written using kana alone  noun  noun (generic) 

• Beyrich's slit shell (species of sea snail, Pleurotomaria beyrichii)

usually written using kana alone  noun  noun (generic) 

• Beyrich's slit shell (species of sea snail, Pleurotomaria beyrichii)

usually written using kana alone  rare term  noun  noun (generic) 

• Beyrich's slit shell (species of sea snail, Pleurotomaria beyrichii)

usually written using kana alone  noun  noun (generic) 

• Toyotamaphimeia machikanensis (Japanese fossil species of crocodilian)

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

• saltwater crocodile (Crocodylus porosus), estuarine crocodile

rare term  usually written using kana alone  noun  noun (generic) 

• saltwater crocodile (Crocodylus porosus), estuarine crocodile

usually written using kana alone  noun  noun (generic) 

• short-finned pilot whale (Globicephala macrorhynchus)

usually written using kana alone  noun  noun (generic) 

• Risso's dolphin (Grampus griseus), grampus

usually written using kana alone  noun  noun (generic) 

• black-backed wagtail (Motacilla alba lugens)