California Moray (Gymnothorax mordax)
Dragon Moray aka Leopard Moray (Enchelycore pardalis)
Honeycomb Moray aka Laced Moray & Tesselate Moray (Gymnothorax favagineus)
(The keepers at Shedd are not exactly sure about about what kind of Moray this one is...)
Green Moray (Gymnothorax funebris). This one has blue skin and yellow slime = green color.
Garden Eels (Heteroconger cobra)
Moray eels have a second set of jaws in their throat called pharyngeal jaws, which also possess teeth. When feeding, morays launch these jaws into the oral cavity, where they grasp struggling prey and transport it into the throat and down to the rest of the digestive system. Moray eels are the only known type of animal that uses pharyngeal jaws to actively capture and restrain prey. Source: Wikipedia.
These eels were photographed at Shedd Aquarium, Chicago

