Gonostomatidae
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The Gonostomatidae are a family of mesopelagic marine fish, commonly named bristlemouths or anglemouths. Their common name, bristlemouth, comes from their odd, equally sized, and bristle-like teeth. I
Bristlemouth specimen showing jaw length.
Scopeloides, a fossil bristlemouth from Romania
Sigmops bathyphilus
Mesopelagic zone
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The mesopelagic zone, also known as the middle pelagic or twilight zone, is the part of the pelagic zone that lies between the photic epipelagic and the aphotic bathypelagic zones. It is defined by li
Gonostomatidae
…The Gonostomatidae are a family of mesopelagic marine fish, commonly named bristlemouths or anglemouths. Their common name, bristlemouth, comes from their odd, equally sized, and bristle-like teeth…
Sediment trap sample, Thermaikos Gulf, Greece, 2000. Stereoscopic image of the collected material above 63-μm pore size net. Calcareous shells and skeletons of planktonic organisms can be identified.
Sonar data. The green layer in the water column is the deep scattering layer of diel vertically migrating mesopelagic zooplankton and fish.
Illustration by Charles Frederick Holder of various bioluminescent fish that live in the mesopelagic zone.
Helmet jellyfish, Periphylla periphylla.