Neopetrosia rosariensis

Neopetrosia rosariensis is a sponge found in tropical waters of the Atlantic Ocean, particularly around Panama, the Canary Islands, and Colombia. This species is characterized by its cylindrical tubes, which can reach up to 78 cm in height and vary between 2 to 13 cm in width. The sponge is dark reddish-brown on the outside and tan internally. Its surface is generally smooth, though some parts can be uneven or rugose, and it may occasionally be covered by zooanthids. The oscules, or openings, are located on the inner walls of the tubes and range from 0.06 to 0.34 cm in width. Divers might encounter this sponge on coral outcrops and reef environments, where it remains sessile, firmly attached to the substrate. It thrives at depths ranging from 2 to 30 meters, making it accessible to divers exploring these habitats. Neopetrosia rosariensis is part of the Demospongiae class, which are hermaphroditic. The sponge's life cycle includes a free-swimming parenchymella larva stage that eventually settles on a substrate to grow into a mature sponge. As of the latest evaluations, this species has not been assessed for the IUCN Red List, meaning its conservation status is currently not evaluated.