Valenciennellus
Encyclopedia
Valenciennellus is an ocean
ic ray-finned fish genus
which belongs in the family
Sternoptychidae
. They are commonly known as constellationfishes.
Its type species
is V. tripunctulatus, and only one additional living species
is placed here:
Fossil
s of constellationfishes are known since the Early Eocene, more than 40 million years ago.
Ocean
An ocean is a major body of saline water, and a principal component of the hydrosphere. Approximately 71% of the Earth's surface is covered by ocean, a continuous body of water that is customarily divided into several principal oceans and smaller seas.More than half of this area is over 3,000...
ic ray-finned fish genus
Genus
In biology, a genus is a low-level taxonomic rank used in the biological classification of living and fossil organisms, which is an example of definition by genus and differentia...
which belongs in the family
Family (biology)
In biological classification, family is* a taxonomic rank. Other well-known ranks are life, domain, kingdom, phylum, class, order, genus, and species, with family fitting between order and genus. As for the other well-known ranks, there is the option of an immediately lower rank, indicated by the...
Sternoptychidae
Sternoptychidae
The 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...
. They are commonly known as constellationfishes.
Its type species
Type species
In biological nomenclature, a type species is both a concept and a practical system which is used in the classification and nomenclature of animals and plants. The value of a "type species" lies in the fact that it makes clear what is meant by a particular genus name. A type species is the species...
is V. tripunctulatus, and only one additional living species
Species
In biology, a species is one of the basic units of biological classification and a taxonomic rank. A species is often defined as a group of organisms capable of interbreeding and producing fertile offspring. While in many cases this definition is adequate, more precise or differing measures are...
is placed here:
- Valenciennellus carlsbergi Bruun, 1931
- Valenciennellus tripunctulatus (Esmark, 1871)
Fossil
Fossil
Fossils are the preserved remains or traces of animals , plants, and other organisms from the remote past...
s of constellationfishes are known since the Early Eocene, more than 40 million years ago.