Description
General:
Tentilla covered by a red-fluorescent layer. First record of an invertebrate producing red bioluminescence (produced by fluorescence of blue-green bioluminescence). Main part of the tentacle, with its tentilla, can be extended away from the siphosomal stem on a long peduncle. Twitches tentilla to mimic the movement of copepods to attract midwater fishes. Each tentilla may contain more than 3,000 powerful nematocysts. Bracts have dots at the end of them (concentrated nematocysts). Eggs are very large and visible, as are the clusters of male gonophores.
Size:
To 45 cm total length.
Geographic Information
Additional Information
Verified MBARI depth distribution:
1600 - 2500 m
References
Encyclopedia of LifeTree of Life
World Register of Marine Species
National Center for Biotechnology Information
Pugh, P.R. and S.H. Haddock (2016). A description of two new species of the genus Erenna (Siphonophora, Physonectae, Erennidae), with notes on recently collected specimens of other Erenna species. Zootaxa, 4189: zootaxa 4189 4183 4181. http://dx.doi.org/10.11646/zootaxa.4189.3.1
Citation:
Erenna sirena
(Pugh & Haddock, 2016) Deep-Sea Guide (DSG) at http://dsg/mbari.org/dsg/view/concept/Erenna%20sirena. Monterey Bay Aquarium Research Institute (MBARI). Consulted on 2024-11-22.