Beroe forskalii Milne Edwards (Fig. 3A and B) was the most abundant species in the Gulf of Trieste. Its body is conical in the aboral part while its aboral end is pointed (Fig. 4A) when viewed in the stomodaeal plane. The oral end is broad with a very large mouth. The mouth opening is wide, and has a large, half-circle shape. The body is strongly compressed. Diverticulae (lateral branches) of the meridional canals are very dense and anostomose with each other. There is axial funnel-tube. The aboral pole is fringed with a row of long branched papillae (Fig. 5A). Color varies from transparent to slightly pinkish in juveniles, becoming pink in adults.