description Showy Bristlemouth Overview
Showy bristlemouth is the common name for Cyclothone signata, a small ray-finned fish in the family Gonostomatidae. It belongs to Cyclothone, a genus of mesopelagic fishes whose members use photophores, light-producing organs, in the low-light zone of the open ocean. C. signata is distinguished in identification guides by features such as its fin-ray and vertebral counts and by the absence of a particular supraorbital photophore.
It is chiefly of interest to readers studying deep-sea fish taxonomy and bioluminescence.
help Showy Bristlemouth FAQ
What is the Showy bristlemouth's scientific name?
The Showy bristlemouth is Cyclothone signata, a small ray-finned fish in the family Gonostomatidae. It belongs to the deep-sea genus Cyclothone.
Where does the Showy bristlemouth live?
Cyclothone signata is a mesopelagic fish, meaning it lives in the open-ocean zone below the sunlit surface waters. This low-light habitat is commonly called the twilight zone.
How does the Showy bristlemouth produce light?
Members of Cyclothone use photophores, which are light-producing organs, in the dark open ocean. Bioluminescence can help with camouflage, communication, or interactions with prey.
Is the Showy bristlemouth a large deep-sea fish?
No. It is a small ray-finned fish despite living in the deep ocean. Its compact body and photophores are adaptations to mesopelagic life.
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