Superregnum: Eukaryota
Cladus: Unikonta
Cladus: Opisthokonta
Cladus: Holozoa
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Superphylum: Deuterostomia
Phylum: Chordata
Subphylum: Vertebrata
Infraphylum: Gnathostomata
Megaclassis: Osteichthyes
Cladus: Sarcopterygii
Cladus: Rhipidistia
Cladus: Tetrapodomorpha
Cladus: Eotetrapodiformes
Cladus: Elpistostegalia
Superclassis: Tetrapoda
Cladus: Reptiliomorpha
Cladus: Amniota
Classis: Reptilia
Cladus: Eureptilia
Cladus: Romeriida
Subclassis: Diapsida
Cladus: Sauria
Infraclassis: Archosauromorpha
Cladus: Crurotarsi
Divisio: Archosauria
Cladus: Avemetatarsalia
Cladus: Ornithodira
Subtaxon: Dinosauromorpha
Cladus: Dinosauriformes
Cladus: Dracohors
Cladus: Dinosauria
Cladus: Saurischia
Cladus: Eusaurischia
Subordo: Theropoda
Cladus: Neotheropoda
Cladus: Averostra
Cladus: Tetanurae
Cladus: Avetheropoda
Cladus: Coelurosauria
Cladus: Tyrannoraptora
Cladus: Maniraptoromorpha
Cladus: Maniraptoriformes
Cladus: Maniraptora
Cladus: Pennaraptora
Cladus: Paraves
Cladus: Eumaniraptora
Cladus: Avialae
Infraclassis: Aves
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Ordo: Charadriiformes
Subordo: Lari
Familia: Laridae
Subfamilia: Sterninae
Genus: Onychoprion
Species: O. aleuticus – O. anaethetus – O. fuscatus – O. lunatus
Name
Onychoprion Wagler, 1832
References
Isis 25: col. 277
Bridge, E. S., Jones, A. W., & Baker, A. J. (2005). A phylogenetic framework for the terns (Sternini) inferred from mtDNA sequences: implications for taxonomy and plumage evolution. Molecular Phylogenetics and Evolution 35: 459–469.
Vernacular names
English: Brown-backed terns
Onychoprion, the "brown-backed terns", is a genus of seabirds in the family Laridae. The genus name is from Ancient Greek onux, "claw" or "nail", and prion, "saw".[2]
Species
Although the genus was first described in 1832 by Johann Georg Wagler the four species in the genus were until 2005 retained in the larger genus Sterna, the genus that holds most terns.[3]
Three of the four species are tropical, and one has a sub-polar breeding range. The sooty tern has a pan-tropical distribution; the bridled tern also breeds across the Tropical Atlantic and Indian Ocean but in the central Pacific it is replaced by the spectacled tern. The Aleutian tern breeds around Alaska and Siberia but winters in the tropics around South East Asia.
| Image | Scientific name | Common Name | Distribution |
|---|---|---|---|
 |
Onychoprion lunatus | Spectacled tern | tropical Pacific Ocean |
 |
Onychoprion anaethetus | Bridled tern | Red Sea, Persian Gulf, Pacific Ocean, western Indian Ocean, Caribbean and West Africa. |
 |
Onychoprion fuscatus | Sooty tern | Red Sea across Indian Ocean to at least central Pacific. |
 |
Onychoprion aleuticus | Aleutian tern | Alaska and easternmost Siberia to Australia |
Manutara is the Rapa Nui language name for spectacled and sooty terns. Both arrive at Easter Island and hatch their eggs on the island called Motu Nui, an event that was used for an annual rite called Tangata manu.
References
"Laridae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-26.
Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 282. ISBN 978-1-4081-2501-4.
Bridge, E. S.; Jones, A. W. & Baker, A. J. (2005). A phylogenetic framework for the terns (Sternini) inferred from mtDNA sequences: implications for taxonomy and plumage evolution Archived 2006-07-20 at the Wayback Machine. Molecular Phylogenetics and Evolution 35: 459–469.
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