John H. Day, Date of Birth, Place of Birth, Date of Death

John H. Day

South African marine biologist

Date of Birth: 25-Aug-1909

Place of Birth: Sussex, England, United Kingdom

Date of Death: 24-Apr-1989

Profession: zoologist, marine biologist, annelidologist

Nationality: South Africa

Zodiac Sign: Virgo

John Hemsworth Osborne-Day (25 August 1909 – 24 April 1989 ) was a South African marine biologist and invertebrate zoologist who was born in Sussex and who died in Knysna.
He is best known for his work on the taxonomy of Polychaeta and for his studies on the ecology of South African estuaries.