Origin of free-swimming
Examples from the Web for free-swimming
Historical Examples of free-swimming
The young barnacles when hatched from the egg are free-swimming larv as with the other Crustacea.
The ascidian when born is a tiny, free-swimming, tadpole-like creature with a slender finned tail.
The young Sacculina is an active, free-swimming larva essentially like a young prawn or crab.
Besides the myriads of free-swimming copepods, there are parasitic forms in great number.
When the eggs hatch, the free-swimming young escape from the mantle cavity.