. Dwellers of the sea and shore . serpula; a tube-building worm, this creature has built its tube on the dead shell of a whelk. filamentous strands that are continuously contracting and expanding. These can be extended to several times the length of the animal's body, the latter being about three inches long. A pair of shorter, branched gills also occur on each segment of the forward half of the worm, while the hinder part is bare. In this creature, as well as many others of Its class, the typical crown of appendages that they bear may with equal correctness

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Keywords: ., bookcentury1900, bookpublishernewyorkt, booksubjectmarineanimals