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Giant Siphonophore
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Praya dubia

3 Photos
1

A siphonophore at night in the gulf stream.

Siphonophore

Giant siphonophores are bioluminescent. They can shine a bright blue in order to attract prey to themselves.

Peter Leahy/Shutterstock.com
2

Praya dubia (il·lustració científica

Giant Siphonophore

The siphonophore is one such animal, with a long rope-like body made up of multiple biological pieces, stinging tentacles, and a gassy floating structure.

Alzinous, CC BY-SA 4.0
3

Colored circles correspond to the clades shown in Fig. 3 as follows: Cystonectae (A and B), Calycophorae (C–G), Apolemiidae (H), and Clade A within Euphysonectae (I-K). (A) Rhizophysa eysenhardtii, scale bar = 1 cm. (B) Bathyphysa conifera, scale bar = 2 cm. (C) Hippopodius hippopus, scale bar = 5 mm. (D) Kephyes hiulcus, scale bar = 2 mm. (E) Desmophyes haematogaster, scale bar = 5 mm. (F) Sphaeronectes christiansonae, scale bar = 2 mm. (G) Praya dubia, scale bar = 4 cm. (H) Apolemia sp., scale bar = 1 cm. (I) Lychnagalma utricularia, scale bar = 1 cm. (J) Nanomia sp., scale bar = 1 cm. (K) Physophora hydrostatica, scale bar = 5 mm. Photo credits: S. Siebert (C,H,I,K), S. Haddock (A,D,E,F), R. Sherlock (B), MBARI (G), C. Munro (J).

Photos of Siphonophore

The giant siphonophore gets confused for jellyfishes all the time. If you happen to see one, don’t touch it. It packs a painful but rarely fatal sting, to humans that is.

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