Siphonophorae Collection

Portuguese man o war (Physalia physalis) Tenerife, Canary Islands

Man-of-war fish (Nomeus gronovi) living within deadly tentacles of Portuguese man o war (Physalia physalis), to whose toxin it is ten times more resistant than other fish, at sea surface. Dominica

Blue sea slug (Glaucus atlanticus) that was washed ashore with a mass, multi-day stranding of thousands of Indo-Pacific Portuguese man-of-war (Physalia utriculus)

Siphonophore (Nanomia sp) close up of nectophores, and palpons. Gulf of Maine, Atlantic Ocean. Epipelagic species found up to 300m depth

Portuguese Man-of-War (Physalia physalis) close up of tentacles, Sargasso Sea, Bermuda

Portuguese man o war (Physalia physalis) Tenerife, Canary Islands. January

Top-down view of an Indo-Pacific Portuguese Man-of-War (Physalia utriculus). This is one of many thousands that were part of a mass stranding in South Africa. Atlantic ocean

Portuguese man o war (Physalia physalis) floating on sea surface. Azores, Atlantic Ocean

Plate 7 Epibulia Siphonophorae from Kunstformen der Natur (Art Forms in Nature) illustrated by Ernst Haeckel (1834-1919)
5615752 Plate 7 Epibulia Siphonophorae from Kunstformen der Natur (Art Forms in Nature) illustrated by Ernst Haeckel (1834-1919) by Haeckel

Examples of Siphonophorae from Kunstformen der Natur, 1899 (colour litho)
746699 Examples of Siphonophorae from Kunstformen der Natur, 1899 (colour litho) by Haeckel, Ernst (1824-1919) (after); Private Collection; (add.info.: Siphonophorae or Siphonophora)

Examples of Siphonophorae from Kunstformen der Natur, 1899 (colour litho)
746700 Examples of Siphonophorae from Kunstformen der Natur, 1899 (colour litho) by Haeckel, Ernst (1824-1919) (after); Private Collection; (add.info.: Siphonophorae or Siphonophora)

Mutualism between a Portuguese man o war (Physalia physalis) and a juvenile Imperial blackfish (Schedophilus ovalis), Tenerife, Canary Islands

Siphonophorae hydrozoa: Epibulia ritteriana 1, 2, and Salacella uvaria 3-6. Chromolithograph by Adolf Glitsch from an illustration by Ernst Haeckel from Art Forms in Nature, Kunstformen der Natur

Siphonophora jellyfish colony. Physophora hydrostatica (Discolabe quadrigata), colony, gas bladder, swimming bell, polyp, etc

Siphonophorae hydrozoa: Porpema prunella and Porpita species, young and adult colonies, gas bladder, etc. Chromolithograph by Adolf Glitsch from an illustration by Ernst Haeckel from Art Forms in

Physalia pelagica, jellyfish model
A glass model of a jellyfish, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Physophora hydrostatica, jellyfish model
A glass model of a jellyfish, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Physophora hydrostatica, jellyfish
A glass model of a jellyfish, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

Physalia pelagica, jellyfish
A glass model of a jellyfish, created by Leopold and Rudolf Blaschka in the late nineteenth century and held at the Natural History Museum, London

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"Siphonophorae: Fascinating Creatures of the Ocean" The Portuguese man o war (Physalia physalis) is a mesmerizing and deadly creature found in the waters surrounding Tenerife, Canary Islands. With its vibrant colors and long tentacles, it commands attention while floating on the sea surface. However, lurking within these deadly appendages is an unexpected resident - the Man-of-war fish (Nomeus gronovi). This unique fish has developed a remarkable resistance to the toxin of Physalia physalis, making it ten times more resistant than other fish in its vicinity. Venturing further into the Caribbean Sea, we encounter another intriguing species that predates upon Portuguese man o wars - the Blue sea slug (Glaucus atlanticus). These slugs were washed ashore during a mass stranding event involving thousands of Indo-Pacific Portuguese man-of-war (Physalia utriculus). Astonishingly, Glaucus atlanticus not only survives but thrives by consuming these venomous creatures due to their immunity against their potent venom. Moving towards Bermuda's Sargasso Sea, we witness a captivating close-up view of Physalia pelagica's tentacles. The intricate design and vibrant hues highlight nature's artistry at its finest. Similarly enchanting are Nanomia sp's nectophores and palpons found in Gulf of Maine. These delicate structures showcase both beauty and functionality as they aid in locomotion for this particular siphonophore species. In South Africa's Atlantic Ocean lies evidence of yet another extraordinary phenomenon - a massive stranding event involving thousands of Indo-Pacific Portuguese Man-of-War (Physalia utriculus). A top-down view reveals countless individuals floating together as if forming an oceanic tapestry. Such occurrences provide scientists with valuable insights into these enigmatic creatures' behavior and distribution patterns. As we journey through various oceans around the world, from Azores to the Atlantic, we encounter these captivating creatures time and again.