Beroe basteri is a species of beroid ctenophore, or comb jelly, native to the Pacific Ocean.
Beroe basteri was originally described by René Primevère Lesson in 1829 from a specimen collected near Callao, Peru. Lesson gave it the common name "Béroé de Baster," but did not indicate why he chose it.
Beroe basteri is ovoid; Lesson likened its shape to that of a small melon ("De forme d'un petit melon"). It has nine combs of white cilia running along its body which lack the iridescence common in other members of this genus.
Although little studied, B. basteri has historically been found in the Pacific Ocean off the coasts of Peru and Chile.