home > use the guide Select Species Select Species: Asian clam Corbicula fluminea (Updated 12/19/2012) 2 pictures for this species available – click camera to zoom! Asian shore crab Hemigrapsus sanguineus (Updated 01/04/2011) 4 pictures for this species available – click camera to zoom! Brazilian elodea Egeria densa (Updated 02/28/2013) 1 picture for this species available – click camera to zoom! Brittle naiad Najas minor (Updated 00/00/0000) No pictures for this species available – check back! Chinese Mitten Crab Eriocheir sinensis (Updated 11/03/2009) 1 picture for this species available – click camera to zoom! Club tunicate Styela clava (Updated 03/18/2010) 2 pictures for this species available – click camera to zoom! Didymo (a.k.a. rock snot) Didymosphenia geminata (Updated 12/05/2012) 3 pictures for this species available – click camera to zoom! Eurasian watermilfoil Myriophyllum spicatum (Updated 01/10/2013) 6 pictures for this species available – click camera to zoom! European frog-bit Hydrocharis morsus-ranae (Updated 00/00/0000) No pictures for this species available – check back! Fanwort Cabomba caroliniana (Updated 00/00/0000) No pictures for this species available – check back! Fishhook water flea Cercopagis pengoi (Updated 11/16/2009) 1 picture for this species available – click camera to zoom! Green crab Carcinus maenas (Updated 03/18/2010) 1 picture for this species available – click camera to zoom! Hydrilla Hydrilla verticillata (Updated 11/06/2012) 4 pictures for this species available – click camera to zoom! Lionfish Pterois volitans (Updated 11/12/2009) 2 pictures for this species available – click camera to zoom! Northern snakehead Channa argus (Updated 10/14/2011) 3 pictures for this species available – click camera to zoom! Orange-striped anemone Diadumene lineata (Updated 11/02/2009) 1 picture for this species available – click camera to zoom! Parrot feather Myriophyllum aquaticum (Updated 00/00/0000) No pictures for this species available – check back! Quagga mussel Dreissena rostriformis bugensis (Updated 05/01/2012) 2 pictures for this species available – click camera to zoom! Red alga Grateloupia turuturu (Updated 05/01/2012) 4 pictures for this species available – click camera to zoom! Round goby Apollonia melanostomus (Neogobius melanostomus) (Updated 05/01/2012) 3 pictures for this species available – click camera to zoom! Rusty crayfish Orconectes rusticus (Updated 12/23/2012) 1 picture for this species available – click camera to zoom! Sea squirt Didemnum vexillum (Updated 05/01/2012) 8 pictures for this species available – click camera to zoom! Sheath tunicate Botrylloides violaceus (Updated 05/01/2012) 3 pictures for this species available – click camera to zoom! Spiny water flea Bythotrephes longimanus (Updated 05/15/2015) 3 pictures for this species available – click camera to zoom! Star tunicate Botryllus schlosseri (Updated 05/01/2012) 3 pictures for this species available – click camera to zoom! Tench Tinca tinca (Updated 05/15/2012) 4 pictures for this species available – click camera to zoom! Variable-leaf watermilfoil Myriophyllum heterophyllum (Updated 12/31/2013) 7 pictures for this species available – click camera to zoom! Water chestnut Trapa natans (Updated 04/30/2012) 5 pictures for this species available – click camera to zoom! Yellow floating heart Nympohoides peltata (Updated 00/00/0000) No pictures for this species available – check back! Zebra mussel Dreissena polymorpha (Updated 05/01/2012) 2 pictures for this species available – click camera to zoom! Select Sort Common Name Scientific Name Habitat Plant/Animal Filter by Habitat Freshwater Marine Filter by Plant/Animal Animal Plant Filter by Common Vector Aquaculture Aquarium release Bait release Illegal stocking Ornamental garden release Overland transport (e.g. boats, equipment) Shipping: Ballast water Shipping: Fouling Select all common vectors