The concept of a Malay race was originally proposed by the German physician Johann Friedrich Blumenbach (1752–1840), and classified as a brown race. Malay is a loose term used in the late 19th century and early 20th century to describe the Austronesian peoples.
Skulls representing Johann Friedrich Blumenbach's "five races" in De Generis Humani Varietate Nativa (1795). The Tahitian skull labelled "O-taheitae" represented what he called the "Malay race"
Johann Friedrich Blumenbach
Johann Friedrich Blumenbach was a German physician, naturalist, physiologist, and anthropologist. He is considered to be a main founder of zoology and anthropology as comparative, scientific disciplines. He has been called the "founder of racial classifications."
Johann Friedrich Blumenbach
Johann Friedrich Blumenbach, engraving by Ludwig Emil Grimm
Blumenbach's five races