Examples from the Web for lancelet
The human heart may present in degenerates all types from the pulsating vessel found in the lancelet up to that of the mammal.Degeneracy|Eugene S. Talbot
The Lancelet also differs from the true vertebrates, in that it has no limbs.Stories of the Universe: Animal Life|B. Lindsay
The spleen, a dark-red lymphatic gland, is found attached to the stomach in all fish-like vertebrates except the lancelet.
By "launces" the writer meant what we should now call the lancelet.The Cornwall Coast|Arthur L. Salmon
Nothing of the nature of lung or air-bladder is found in lancelet, lamprey, or shark.