The name
hatchetfish may refer to two unrelated groups of
fishA fish is any aquatic vertebrate animal that is typically ectothermic , covered with scales, and equipped with two sets of paired fins and several unpaired fins...
es:
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The name
hatchetfish may refer to two unrelated groups of
fishA fish is any aquatic vertebrate animal that is typically ectothermic , covered with scales, and equipped with two sets of paired fins and several unpaired fins...
es:
- Marine hatchetfish
The 'marine hatchetfishes or deep-sea hatchetfishes are small deep-sea bathypelagic ray-finned fish of the stomiiform subfamily Sternoptychinae...
es, small deep-sea bioluminescentBioluminescence is the production and emission of light by a living organism. Its name is a hybrid word, originating from the Greek bios for "living" and the Latin lumen "light". Bioluminescence is a naturally occurring form of chemiluminescence where energy is released by a chemical reaction in...
fishes (StomiiformesStomiiformes is an order of deep-sea ray-finned fishes of very diverse morphology. It includes for example dragonfishes, lightfishes, loosejaws, marine hatchetfishes and viperfishes. The order contains 4 families with more than 50 genera and almost 400 species...
) of the family SternoptychidaeThe marine hatchetfishes or deep-sea hatchetfishes as well as the related bottlelights, pearlsides and constellationfishes are small deep-sea bathypelagic ray-finned fish of the stomiiform family Sternoptychidae...
, subfamily Sternoptychinae.
- Freshwater hatchetfish
The freshwater hatchetfishes are a family, Gasteropelecidae, of ray-finned fish. The common hatchetfish is the most popular member among fish keeping hobbyists...
es, tropical characinThe Characiformes are an order of ray-finned fish, comprising the characins and their allies. There are a few thousand different species, including the well-known piranha and tetras.-Taxonomy:...
s of the large family Gasteropelecidae.