Acromitus

Acromitus is a genus of scyphozoan jellyfish belonging to the order Rhizostomeae. These jellyfish are characterized by their lack of marginal tentacles and the presence of a highly branched oral arm structure. The bell of Acromitus is typically broad and flattened, and its size can vary depending on the species. Their coloration is often translucent, with some species exhibiting shades of blue, purple, or pink.

Species within the Acromitus genus are found in various marine environments, primarily in tropical and subtropical waters. They are pelagic organisms, meaning they drift with ocean currents. Their diet consists mainly of plankton, which they capture using their oral arms. Reproduction in Acromitus follows the typical jellyfish life cycle, involving both sexual and asexual stages.

One notable species is Acromitus flagellatus, which has been observed in the Indo-Pacific region. Like other rhizostomes, Acromitus jellyfish are not considered dangerous to humans, as they lack potent stinging cells. Their ecological role involves contributing to the plankton food web and serving as prey for larger marine animals. Research into Acromitus is ongoing, focusing on their distribution, behavior, and genetic diversity.