In the 1900s, the Prince navigator carried out several campaigns in the eastern Atlantic, mainly in the Azores and Madeira. One of his expeditions took place in Cabo Verde aboard Princess Alice II, another of the Prince’s vessels. He discovered several new species, including the Donzelle (Holcomycteronus profundissimus), a small abyssal fish that for a long time held the record for the deepest fish ever caught, and caught rare species such as the Long Dorsal Shark (Pseudotriakis microdon), two unique specimens from the natural history collections of the Oceanographic Museum of Monaco, still today displayed in the exhibition rooms.
More than a century after the expeditions of Prince Albert 1st, this new discovery illustrates the richness of a marine biodiversity that is still incompletely inventoried and listed.