Pyrosoma aherniosum is a species of pyrosome in the genus Pyrosoma.[1] It was first described in 1895 by Oswald Seeliger from material collected on the Plankton Expedition.[2]
Colonies are transparent colonies and measure up to 2.5 cm in length by 1.5 cm wide, with individual zooids reaching lengths of up to 4.1 mm. The oral siphon is large and broad, while the cloacal siphon is very short.
The species is marine and occurs in the subtropical Indian Ocean.[3] [4] [5]
Like other other pyrosomes, the species' life cycle includes both clonal and sexual phases. Colonies are solitary.[6]