Fin's Fish Guide
The Longfin bristlemouth (Sigmops longipinnis) is a saltwater fish of the family Gonostomatidae that grows up to 7 cm.
Description
The longfin bristlemouth is a small mesopelagic lightfish (Gonostomatidae) of the open ocean. The species grows to about 7 cm and has a slender, dark, scaleless body with rows of light-producing organs (photophores) along the belly and a mouth full of fine, bristle-like teeth. Bristlemouths are among the most numerous vertebrates on Earth. As a vertical migrant it rises at night and eats small zooplankton. The fish is harmless to humans.
Frequently asked questions
How do you recognise the Longfin bristlemouth?
The Longfin bristlemouth has an elongate, eel-like body, is mainly black and shows a plain pattern. Brush-like small teeth and photophores; vertically migrating lightfish
Where does the Longfin bristlemouth live?
The Longfin bristlemouth lives in the sea (marine waters) and is mostly found around open water. Worldwide (mesopelagic)
How big does the Longfin bristlemouth get?
The Longfin bristlemouth grows to a maximum of about 7 cm. On average the species is around 4 cm.
Is the Longfin bristlemouth dangerous to humans?
No, the Longfin bristlemouth is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.
Is the Longfin bristlemouth edible?
The Longfin bristlemouth is not usually eaten.
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All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Want the complete picture on the Longfin bristlemouth?
Point your camera at the fish and Fin names the species in seconds. Free, and the Longfin bristlemouth is one of 12,519 species in the app.