Gonatopsis
Gonatopsis is a genus of squid from the family Gonatidae. They are characterised by the loss of their tentacles by the time they have reach the subadult stage. They have arms which have two series of hooks along the midline of the oral surface arms, the radula has five or seven teeth, the mantle can be muscular or flabby, fins are rhomboid or arrow shaped and they lack photophores. They are found in the North Pacific.[2]
| Gonatopsis | |
|---|---|
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Mollusca |
| Class: | Cephalopoda |
| Order: | Oegopsida |
| Family: | Gonatidae |
| Genus: | Gonatopsis Sasaki, 1920[1] |
| Type species | |
| Gonatopsis octopedatus Sasaki, 1920 | |
| Synonyms | |
|
Eogonatus Nesis, 1972 | |
Species
The following species have been classified as belonging to Gonatopsis:[1]
- Gonatopsis borealis Sasaki, 1923
- Gonatopsis japonicus Okiyama, 1969
- Gonatopsis makko Okutani & Nemoto, 1964
- Gonatopsis octopedatus Sasaki, 1920
- Gonatopsis okutanii * Nesis, 1972
The species listed above with an asterisk (*) is a taxon inquirendum and needs further study to determine if it is a valid species or a synonym.
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References
- Julian Finn (2016). "Gonatopsis Sasaki, 1920". World Register of Marine Species. Flanders Marine Institute. Retrieved 4 March 2018.
- Kubodera, Tsunemi; F. G. Hochberg; Richard E. Young & Michael Vecchione (2014). "Gonatopsis Sasaki, 1920". The Tree of Life Web Project.
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