Prohibited Species:

* Asian swamp eel (Monoterus albus)
* Bighead carp (Hypophthalmichthys nobilis)
* Black carp (Mylopharynodon piceus)
* Candiru (Vandellia cirrhosa)
* Chinese mitten crab (Eriocheir sinensis)
* Eurasian river ruffe (Gymnocephalus cernuus)
* Giant salvinia (Salvinia molesta)
* Grass carp (Ctenopharyngodon idella)
* Green Caulerpa seaweed (Caulerpa taxifolia)
* Quagga mussel (Dreissena bugensis)
* Round goby (Neogobius melanostomus)
* Rusty crayfish (Orconectes rusticus)
* Silver carp (Hypophthalmichthys molitrix)
* Walking catfish (Clarius batrachus)
* Zebra mussel (Dreissena polymorpha)

Species Prohibited from Transport Only:

* Blue catfish (Ictalurus furcatus)
* Flathead catfish (Pylodictis olivaris)
* Green crab (Carcinus manenas)
* Hydrilla (Hydrilla verticillata)
* Japanese shore crab (Hemigrapsus sanguineus)
* Red swamp crayfish (Procambarus clarkii)
* Virile crayfish (Orconectes virilis)
* Water chestnut (Trapa natans)

Snakehead Species Prohibited from Import, Transport, or Introduction:

* African snakehead (Parachanna obscura)
* Bangka snakehead (Channa bankanensis)
* Baram snakehead (Channa baramensis)
* Barca snakehead (Channa barca)
* Black snakehead (Channa melasoma)
* Blackfinned snakehead (Channa melanoptera)
* Blotched snakehead (Channa maculata)
* Bluespotted snakehead (Channa cyanospilos)
* Bullseye snakehead (Channa marulius)
* Burmese snakehead (Channa burmanica)
* Ceylon snakehead (Channa orientalis)
* Chel snakehead (Channa amphibeus)
* Chevron snakehead (Channa striata)
* Chinese snakehead (Channa asiatica)
* Congo snakehead (Parachanna insignis)
* Dwarf snakehead (Channa gachua)
* Emperor snakehead (Channa maruloides)
* Giant snakehead (Channa micropeltes)
* Golden snakehead (Channa stewartii)
* Inle snakehead (Channa harcourtbutleri)
* Niger snakehead (Parachanna africana)
* Night snakehead (Channa nox)
* Northern snakehead (Channa argus)
* Ocellated snakehead (Channa pleurophthalmus)
* Orangespotted snakehead (Channa aurantimaculata)
* Panaw snakehead (Channa panaw)
* Rainbow snakehead (Channa bleheri)
* Splendid snakehead (Channa lucius)
* Spotted snakehead (Channa punctata)

Other Species of Concern:

* Emerald Ash Borer (Agrilus planipennis Fairmaire)
* Mute swans (Cygnus olor)
* Nutria (Myocaster coypus)
* Phragmites (Phragmites australis)
* Purple loosestrife (Lythrum salicaria)

08. Department of Natural Resources

Subtitle 02. Fisheries Service

Chapter 19. Nuisance and Prohibited Species.

.01 Prohibitions
A. Except as authorized by Code of Federal Regulations, Title 50, Part 16, a person may not import, transport, or introduce into the State any live fish or viable eggs of snakehead fishes of the Family Channidae, including but not limited to:

1. Channa amphibeus - chel snakehead;
2. Channa argus - northern snakehead;
3. Channa asiatica - chinese snakehead;
4. Channa aurantimaculata - orangespotted snakehead;
5. Channa bankanensis - bangka snakehead;
6. Channa baramensis - baram snakehead;
7. Channa barca - barca snakehead;
8. Channa bleheri -rainbow snakehead;
9. Channa burmanica - burmese snakehead
10. Channa cyanospilos - bluespotted snakehead;
11. Channa gachua - dwarf snakehead;
12. Channa harcourtbutleri - inle snakehead;
13. Channa lucius - splendid snakehead;
14. Channa maculata - blotched snakehead;
15. Channa marulius - bullseye snakehead;
16. Channa maruloides - emperor snakehead;
17. Channa melanoptera - blackfinned snakehead;
18. Channa melasoma - black snakehead;
19. Channa micropeltes - giant snakehead;
20. Channa nox – night snakehead;
21. Channa orientalis - ceylon snakehead;
22. Channa panaw – panaw snakehead;
23. Channa pleurophthalmus - ocellated snakehead;
24. Channa punctata - spotted snakehead;
25. Channa stewartii - golden snakehead;
26. Channa striata - chevron snakehead;
27. Parachanna africana - niger snakehead;
28. Parachanna insignis - congo snakehead; and
29. Parachanna obscura - african snakehead.

B. A person may not sell or breed live snakehead fish of the Family Channidae in the State.

.02 Possession.

A. Except as provided in §B of this regulation a person may not possess the viable eggs or live snakehead fish of the species:

1. Channa argus (northern snakehead); and
2. Channa maculata (blotched snakehead).

B. The Department may issue a permit for the possession of a live snakehead fish for scientific purposes to a properly accredited person of known scientific attainment.

Someone told me that Anableps (anableps!) are now illegal in Maryland.

Please tell me that this guy is smoking his own pole?

He appears to be, but I did find some other species listed as prohibited under this list:

http://www.dnr.state.md.us/invasives/#pis

I have updated the first post with this information.