The table below is not intended to be a comprehensive list of all invasive species in Maryland, but includes species of concern to the Maryland Invasive Species Council (MISC). This list includes all updates approved as of the April 18, 2024 MISC meeting.

Scientific Name	Common Name	Category	Group	Habitat	Regulated in Mid-Atlantic / US
Achatina fulica	Giant East African snail	Mollusk	Achatinoidea	Terrestrial	WV, USDA
Amynthas agrestis	Asian jumping worm	Annelid	Opisthopora	Terrestrial	N/A
Amynthas tokioensis	Asian jumping worm	Annelid	Opisthopora	Terrestrial	N/A
Bythotrephes longimanus	Spiny waterflea	Crustacean	Diplostraca	Aquatic	N/A
Carcinoscorpius rotundicauda	Mangrove horseshoe crab	Crustacean	Decapoda	Aquatic	MD
Carcinus maenas	European green crab	Crustacean	Decapoda	Aquatic	MD
Cernuella virgata	Vineyard snail	Mollusk	Pulmonata	Terrestrial	USDA
Cherax spp.	Yabbies	Crustacean	Decapoda	Aquatic	MD, USFWS
Cipangopaludina chinensis	Chinese mysterysnail	Mollusk	Viviparoidea	Aquatic	MD
Cipangopaludina japonica	Japanese mysterysnail	Mollusk	Viviparoidea	Aquatic	N/A
Corbicula fluminea	Asian clam	Mollusk	Veneroida	Aquatic	N/A
Cornu aspersum	European brown snail	Mollusk	Helicoidea	Terrestrial	USDA
Daphnia lumholtzi	Water flea	Crustacean	Cladocera	Aquatic	N/A
Dreissena bugensis	Quagga mussel	Mollusk	Veneroida	Aquatic	MD, PA, USFWS
Dreissena polymorpha	Zebra mussel	Mollusk	Veneroida	Aquatic	MD, PA, USFWS
Eisenia fetida	Red wiggler	Annelid	Opisthopora	Terrestrial	N/A
Eobania vermiculata	Chocolate-band snail	Mollusk	Achatinoidea	Terrestrial	USDA
Eriocheir sinensis	Chinese mitten crab	Crustacean	Decapoda	Aquatic	MD, VA, USFWS
Faxonius rusticus	Rusty crayfish	Crustacean	Decapoda	Aquatic	MD, PA, VA
Faxonius virilis	Northern crayfish	Crustacean	Decapoda	Aquatic	MD
Haemaphysalis longicornis	East Asian tick	Arachnid	Ixodida	Terrestrial	USDA
Hemigrapsus sanguineus	Asian shore crab	Crustacean	Decapoda	Aquatic	MD
Lumbricus rubellus	Red earthworm	Annelid	Opisthopora	Terrestrial	N/A
Lumbricus terrestris	Common earthworm	Annelid	Opisthopora	Terrestrial	N/A
Metaphire hilgendorfi	Asian jumping worm	Annelid	Opisthopora	Terrestrial	N/A
Potamopyrgus antipodarum	New Zealand mud snail	Mollusk	Littorinimorpha	Aquatic	MD, VA
Procambarus clarkii	Louisiana red crayfish, red swamp crayfish	Crustacean	Decapoda	Aquatic	MD
Procambarus fallax f. virginalis	Marbled crayfish	Crustacean	Decapoda	Aquatic	MD, VA
Procambarus zonangulus	White river crawfish	Crustacean	Decapoda	Aquatic	MD
Rapana venosa	Veined rapa whelk	Mollusk	Muricoidea	Aquatic	MD
Tachypleus gigas	Southern horseshoe crab	Crustacean	Decapoda	Aquatic	MD
Tachypleus tridentatus	Tri-spine horseshoe crab	Crustacean	Decapoda	Aquatic	MD
Varroa destructor	Honey bee varroa mite	Arachnid	Parasitiformes	Terrestrial	USDA
	Chinese pond mussel	Mollusk	Unionida	Aquatic	N/A