List: rare term

rare term  noun  noun (generic) 

• anadromous fish (fish that migrates upstream, e.g. salmon)

rare term  noun  noun (generic) 

• spinneret (of a spider)

rare term  noun  noun (generic) 

• spinnerule (small spinning tube on a spinneret)

rare term  noun  noun (generic) 

• book lung (arachnid respiratory organ)

rare term  noun  noun (generic) 

• sporophyte

rare term  noun  noun (generic) 

• Nephila clavata (Oriental species of golden orb-weaving spider)

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

• tarantula (any spider of family Theraphosidae)
• bird spider (Avicularia avicularia)

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

• tarantula (any spider of family Theraphosidae)

rare term  noun  noun (generic) 

• neuropterans

rare term  noun  noun (generic) 

• pelecypods (i.e. bivalves)