PACIFIC LAMPREY DID YOU KNOW: The Pacific Lamprey has no true fins, jaws, or bones. SCIENTIFIC NAME: Lampetra tridentata , from the Latin lambere, to suck, petra meaning stone, and tridentata meaning three-toothed. COMMON NAMES: Pacific sea-lamprey, three toothed lamprey, tridentate lamprey, and sea lamprey. DESCRIPTION: The lamprey has a round, elongate, flexible cartilaginous body, and skin ...