List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• warty frog shell (Bursa bufonia dunkeri)

usually written using kana alone  noun  noun (generic) 

• tiger moon shell (Natica tigrina)

ateji  usually written using kana alone  noun  noun (generic) 

• Tectus maximus (species of top shell)

usually written using kana alone  noun  noun (generic) 

• spider conch (Lambis chiragra)

usually written using kana alone  noun  noun (generic) 

• chocolate cowry (Mauritia mauritiana), humpback cowry

usually written using kana alone  noun  noun (generic) 

• Omphalius pfeifferi pfeifferi (subspecies of top shell)

usually written using kana alone  noun  noun (generic) 

• Strombus canarium turturella (subspecies of dog conch)

usually written using kana alone  noun  noun (generic) 

• common purple snail (Janthina janthina), common purple sea snail, violet snail, purple bubble raft snail, janthina

usually written using kana alone  noun  noun (generic) 

• maculated top shell (Trochus maculatus)

usually written using kana alone  noun  noun (generic) 

• Bostrycapulus gravispinosus (species of spiny slipper snail)