Sheina Macalister Marshall was a Scottish marine biologist who studied plant and animal plankton. She was an authority on the copepod Calanus. She worked at the Marine Biological Station at Millport, Cumbrae in Scotland from 1922-1964.
- Occupation
- marine biologist, zoologist, oceanographer, botanist
- Citizenship
- United Kingdom, United Kingdom of Great Britain and Ireland
- Born
- April 20, 1896
- Died
- April 7, 1977