Anna Antoinette Weber-van Bosse (27 March 1852 – 29 October 1942) was a Dutch phycologist, specializing in marine algae.

These travels brought about numerous discoveries, including entire new genera of algae, such as Periphykon, Exophyllum, and Microphyllum.

Much of her discoveries from this trip are documented in her monograph Corallinaceae (1904), and her four-volume Liste des algues du Siboga (1913-1928).

[1] She received several awards for her work, including one of the country's highest honors, the Chevalier de l'ordre d'Orange-Nassau, and an honorary doctorate from the University of Utrecht.

How great was our astonishment the next morning when coming on deck, we saw a distinct red colour at the bottom of the sea regularly interrupted by narrow white bands.