Md. Code, Natural Resources § 4–816

The Department may adopt regulations to limit or prohibit the importation, use, catching, or possessing of the following nonnative crab species, which are determined to be harmful to the ecology and natural resources of the State:

(1) Green crab (Carcinus maenas) of the family Portunidae;

(2) Japanese shore crab (Hemigrapsus sanguineus) of the family Grapsidae; and

(3) Chinese mitten crab (Eriocheir sinensis) of the family Grapsidae.