List: word usually written using kana alone

usually written using kana alone  noun  noun (generic) 

• green spotted puffer (Tetraodon nigroviridis)

usually written using kana alone  noun  noun (generic) 

• flat-headed goby (Luciogobius guttatus)

usually written using kana alone  noun  noun (generic) 

• southern bluefin tuna (Thunnus maccoyii)

usually written using kana alone  noun  noun (generic) 

• Pungtungia herzi (species of cyprinid)

usually written using kana alone  noun  noun (generic) 

• big-eyed flathead (Suggrundus meerdervoortii)

usually written using kana alone  noun  noun (generic) 

• Pacific ocean perch (Sebastes alutus)

usually written using kana alone  noun  noun (generic) 

• Miyabe charr (Salvelinus malma miyabei)

usually written using kana alone  noun  noun (generic) 

• malabar grouper (Epinephelus malabaricus), estuary cod, greasy cod, spotted river cod, estuary rock cod

expression  noun  noun (generic)  jocular, humorous term  usually written using kana alone 

• mountain god
• one's wife (esp. a nagging wife)
• roughskin sculpin (Trachidermus fasciatus)

usually written using kana alone  noun  noun (generic) 

• Tanakia lanceolata (species of cyprinid)