Gymnopraia lapislazula

Alternate names: blue siphonophore

Author: Haddock et al., 2005


General: Pair of rounded, swimming nectophores brilliant blue in color, especially when illuminated with white light. Siphonosome frail and lacks bracts. Gastrozooids bright carmine red. Thin tentilla have a single terminal filament.

Geographic Information

Habitat description: Mesopelagic.

Published depth range: 357 - 520 m

Additional Information

Color: Brilliant glowing blue.

Looks like: Desmophyes haematogaster

Key visual features: While both G. lapislazula and D. haematogaster have rounded nectophores and red-pigmented gastrozooids, D. haematogaster can be distinguished by presence of bracts, disjunct pedicular canal, and a substantial portion of the somatocyst remains in contact with the upper wall of the hydroecium.


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National Center for Biotechnology Information

Haddock, S.H.D., C.W. Dunn, and P.R. Pugh (2005). A reexamination of siphonophore terminology and morphology, applied to the description of two new prayine species with remarkable bio-optical properties. Journal of the Marine Biological Association of the United Kingdom, 85: 695-707.

Citation: Gymnopraia lapislazula (Haddock et al., 2005) Deep-Sea Guide (DSG) at http://dsg/ Monterey Bay Aquarium Research Institute (MBARI). Consulted on 2021-09-24.
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