Louie "Sucker Mouth" Sea Lamprey
Diego " El Grande" Brazilian Elodea
Zeke "the Prowler" Zebra Mussel
Purple "Lucky" Loosestrife
Rusty "the Bully" Crayfish
Rocco "Ravenous" Ruffe
Fiton "the Offender" Fishhook Flea
Clyde "the Smacker" Silver Carp
Gabby "the Lowlife" Round Goby
Wilma "the Creeper" Watermilfoil

Round Goby

Sea Grant Images of Round Goby

http://www.invasive.org/browse/detail.cfm?imgnum=1354047

http://en.wikipedia.org/wiki/Round_Goby

http://pictures.care2.com/view/2/629529272

http://nature.org/wherewework/northamerica/states/michigan/misc/art10010.html

http://www.invadingspecies.com/News.cfm?A=Get&ID=16