List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• Ezo neptune (species of whelk, Neptunea polycostata)

usually written using kana alone  noun  noun (generic) 

• Middendorf's whelk (Buccinum middendorffi)

usually written using kana alone  noun  noun (generic) 

• double-sculptured neptune (species of whelk, Neptunea intersculpta)

usually written using kana alone  noun  noun (generic) 

• arthritic neptune (species of whelk, Neptunea arthritica)

usually written using kana alone  noun  noun (generic) 

• perplexed spindle (species of sea snail, Fusinus perplexus)

obsolete reading  usually written using kana alone  noun  noun (generic) 

• whelk (esp. Neptunea and Buccinum spp.)
• small spiral-shelled snail (esp. a pond snail)

usually written using kana alone  noun  noun (generic) 

• precious wentletrap (Epitonium scalare)

usually written using kana alone  noun  noun (generic) 

• Thais clavigera (species of rock shell)

usually written using kana alone  noun  noun (generic) 

• trapezium horse conch (Pleuroploca trapezium)

usually written using kana alone  noun  noun (generic) 

• many-formed cerith (Batillaria multiformis)