Sterna n : a genus of Sterninae [syn: genus Sterna]sternum n : the flat bone that articulates with the clavicles and the first seven pairs of ribs [syn: breastbone] [also: sterna (pl)]sterna See sternum

English

Noun

sterna

1. Plural of sternum

Italian

Noun

1. tern

Derived terms

• sterna codalunga
• sterna del Ruppel

Sterna is a genus of terns in the bird family Sternidae. It used to encompass most "white" terns indiscriminately, but mtDNA sequence comparisons have recently determined that this arrangement is paraphyletic (Bridge et al, 2005). It is now restricted to the typical large white terns occurring near-globally in coastal regions.

Classification

• Genus Sterna - typical white terns
  • Forster's Tern Sterna forsteri
  • Trudeau's Tern Sterna trudeaui
  • Common Tern Sterna hirundo
  • Roseate Tern Sterna dougallii
  • White-fronted Tern Sterna striata
  • Black-naped Tern Sterna sumatrana
  • South American Tern Sterna hirundinacea
  • Antarctic Tern Sterna vittata
  • Kerguelen Tern Sterna virgata
  • Arctic Tern Sterna paradisaea
  • River Tern Sterna aurantia
  • Black-bellied Tern Sterna acuticauda (possibly Chlidonias)
  • White-cheeked Tern Sterna repressa (possibly Chlidonias)

References

• 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. PDF fulltext.