Rare term for armadillo; the common word is アルマジロ. This form is mostly encountered in older or specialized texts.
See also: アルマジロ
In old illustrated reference books, you can see the notation '犰狳'.
きゅうよはアルマジロの和名の一つだが、今はほとんど使われない。
きゅうよ is one of the Japanese names for armadillo, but it is hardly used nowadays.