Hula Skirt Siphonophore
Physophora hydrostatica
Southern Man-O-War
Physalia megalista
- Found in
- 62 regions
How to recognise it
- Colours
- transparentbluepurplepink
- Body shape
- Other
- Family
- Physaliidae
Physalia megalista is a marine hydrozoan found in the Atlantic, Indian, and Pacific oceans.
Taxonomy
In the 20th century, P. megalista was considered a synonym of P. physalis. However, Gershwin et al. (2010) synonymized megalista with P. utriculus. A 2024 study using specimens from around the world identified P. megalista (with a long and slender pneumatophore as a distinct species, further noting that the neotype designation for P. megalista was invalid.
Similar species
Portuguese Man o' War
Physalia physalis
Questions
Is Southern Man-O-War dangerous?
Southern Man-O-War has no known danger to humans. However, always observe marine life responsibly.
