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The name "anglerfish" derives from the species' characteristic method of predation. Anglerfish typically have at least one long filament sprouting from the middle of their heads, termed the illicium. The illicium is the detached and modified first three spines of the anterior dorsal fin. In most anglerfish species, the longest filament is the ...
This figure illustrates how a clade in a phylogenetic tree may be expressed. In a molecular systematic analysis, the haplotypes are determined for a defined area of genetic material; a substantial sample of individuals of the target species or other taxon is used; however, many current studies are based on single individuals. Haplotypes of ...
Most anglerfish, like the one pictured, live in the darkness of the deep sea and have a bioluminescent lure. [89] Archerfish: Archerfish prey on land-based insects and other small animals by shooting them down with water droplets from their specialized mouths. Archerfish are remarkably accurate; adults almost always hit the target on the first ...
The fanfin family, Caulophrynidae, takes its name from the genus Caulophryne.This name is a combination of caulis, which mean" stem", an allusion to the stem-like base of the illicium, with phryne, meaning "toad", a suffix commonly used in the names of anglerfish genera.
Phylogenetic groups are given definitions based on their relationship to one another, rather than purely on physical traits such as the presence of a backbone. This nesting pattern is often combined with traditional taxonomy, in a practice known as evolutionary taxonomy. Evolution of jawless fish. The diagram is based on Michael Benton, 2005. [19]
The Anguillidae are a family of ray-finned fish that contains the freshwater eels.Except from the genus Neoanguilla, with the only known species Neoanguilla nepalensis from Nepal, [5] all the extant species and six subspecies in this family are in the genus Anguilla, and are elongated fish of snake-like bodies, with long dorsal, caudal and anal fins forming a continuous fringe.
Systematics is the study of the diversification of living forms, both past and present, and the relationships among living things through time. Relationships are visualized as evolutionary trees (synonyms: phylogenetic trees, phylogenies). Phylogenies have two components: branching order (showing group relationships, graphically represented in ...
The humpback anglerfish (Melanocetus johnsonii) is a species of black seadevil in the family of Melanocetidae, which means "black whale" in Greek. [1] The species is named after James Yate Johnson, the English naturalist who discovered the first specimen in Madeira in 1863. [2] The common names include anglerfish, viperfish and fangtoothfish ...