. Dwellers of the sea and shore . POLYCIRRUS; THE BLOOD WORM. over and under the surface of the substratum, and would be invisible but for the brilliant stream of blood pulsating through them. Its faod consists of organisms which are minute but not necessarily microscopic. Sometimes a little Cyclops or a larva of some larger crustacean will brush against the tenuous strands; in-

---

Size: 2464px × 2028px
Photo credit: © The Bookworm Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1900, bookpublishernewyorkt, booksubjectmarineanimals