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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
Ordo: Saurischia
Cladus: Eusaurischia
Cladus: 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: Euavialae
Cladus: Avebrevicauda
Cladus: Pygostylia
Cladus: Ornithothoraces
Cladus: Ornithuromorpha
Cladus: Carinatae
Parvclassis: Neornithes
Cohors: Neognathae
Cladus: Neoaves
Ordo: Charadriiformes
Subordo: Alcae

Familia: Alcidae
Genus: Synthliboramphus
Species: S. antiquus - S. craveri - S. hypoleucus -S. scrippsi - S. wumizusume
Name

Synthliboramphus Brandt, 1837
References

Bull. Sci. Acad. Imp. Sci. St. Petersburg 2 col.347

Vernacular names
suomi: Kirjomurrit
русский: Старики

Synthliboramphus is a small genus of seabirds in the auk family from the North Pacific. The genus name Synthliboramphus is from Ancient Greek sunthlibo, "to compress", and rhamphos, "bill".[1] "Murrelet" is a diminutive of "murre", a word of uncertain origins, but which may imitate the call of the common guillemot.[2][3]

The genus contains five species:

Image Scientific name Common name Distribution
Guadalupe murrelet.jpg Synthliboramphus hypoleucus Guadalupe murrelet the California Current system in the Pacific Ocean.
Xantus adult.gif Synthliboramphus scrippsi Scripps's murrelet California Current system in the Pacific Ocean
Alcidae - Synthliboramphus craveri.JPG Synthliboramphus craveri Craveri's murrelet the Pacific Ocean and the Gulf of California off the Baja peninsula of Mexico
Ancient Murrelet - Semiahmoo Spit.jpg Synthliboramphus antiquus Ancient murrelet northeast Asia, Aleutian Islands to western Canada, Commander Islands (eastern Russia).
Synthliboramphus wumizusume -Japan-8.jpg Synthliboramphus wumizusume Japanese murrelet Japan and southern Korea.

.

The first three species were formally considered conspecific, and are sometimes separated in the genus Endomychura.

Fossil remains of two prehistoric species are known: an undescribed Synthliboramphus sp. from the Late Miocene or Early Pliocene (c. 5 mya) of Cedros Island, Mexico, and Synthliboramphus rineyi from the Late Pliocene (around 3.5-2 mya) San Diego Formation of the southwestern USA.

These birds breed in colonies, their eggs being laid directly amongst tree roots or in rock crevices. They are nocturnal on the breeding grounds, presumably to reduce predation, and for the same reason the precocial young are never fed at the nest, being taken to sea a couple of days after hatching. The parents call to the young from out at sea, and the chicks swim towards the adults who keep moving further out throughout the night.

Synthliboramphus species disperse out to sea after breeding, with northern species migrating further south.

Synthliboramphus auks are small, with mainly black upper parts and white the short wings. These birds forage for food like other auks, by swimming underwater. They mainly eat fish, also some crustaceans and other small invertebrates.
References

Jobling, James A (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 376. ISBN 978-1-4081-2501-4.
"Murrelet". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
"Murre". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)

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