Maurice Jules Gaston Corneille Caullery (5 September 1868, Bergues – 13 July 1958, Paris) was a French biologist.
From 1901 to 1903 he was a lecturer at the faculty of sciences in Marseille, and from 1903 to 1909, taught classes at the Sorbonne (laboratory of évolution des êtres organisés).
In 1923 he opened a new laboratory of évolution des êtres organisés on Boulevard Raspail in Paris.
His research of Siboglinum weberi was to become the foundation for establishing the family of beard worms known today as Siboglinidae.
[4] He argued that modern evolution had stopped and the Lamarckian mechanism had "run out of steam", leaving Mendelian processes in operation.