Palinurus vs crayfish

Palinurus and crayfish both are nouns.

Word	Noun	Adjective	Verb	Adverb
Palinurus	Yes	No	No	No
crayfish	Yes	No	No	No

Palinurus (noun)	crayfish (noun)
type genus of the family Palinuridae	large edible marine crustacean having a spiny carapace but lacking the large pincers of true lobsters
	small freshwater decapod crustacean that resembles a lobster
	tiny lobster-like crustaceans usually boiled briefly
	warm-water lobsters without claws; those from Australia and South Africa usually marketed as frozen tails; caught also in Florida and California