Rostrum (from Latin rostrum, meaning beak) is a term used in anatomy for a number of phylogenetically unrelated structures in different groups of animals.

The rostrum (beak) of a grey heron

Invertebrates edit

Vertebrates edit

Diagram of a wolf skull with key features labelled

In mammals, the rostrum is that part of the cranium located in front of the zygomatic arches, where it holds the teeth, palate, and nasal cavity.[6] Additionally, the corpus callosum of the human brain has a nerve tract known as the rostrum.

The beak or snout of a vertebrate may also be referred to as the rostrum.

See also edit

  • Beak – Part of a bird
  • Nostril – Pair of orifices of the nose
  • Snout – Extended part of an animal's mouth

References edit

  1. ^ Charles Drew (November 17, 2003). "Crustacea". University of Bristol. Archived from the original on July 3, 2012. Retrieved November 7, 2010.
  2. ^ Todd A. Haney, Joel W. Martin & Eric W. Vetter (2007). "Leptostraca". In James T. Carlton (ed.). The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon (4th ed.). University of California Press. pp. 484–495. ISBN 978-0-520-23939-5. Archived from the original on 2020-09-12. Retrieved 2020-09-12.
  3. ^ George Gordh, Gordon Gordh & David Headrick (2003). "Rostrum". A Dictionary of Entomology. CAB International. p. 792. ISBN 978-0-85199-655-4.
  4. ^ Douglas Grant Smith (2001). "Mollusca (gastropods, pelecypods)". Pennak's freshwater invertebrates of the United States: Porifera to Crustacea (4th ed.). John Wiley and Sons. pp. 327–400. ISBN 978-0-471-35837-4. Archived from the original on 2020-09-12. Retrieved 2020-09-12.
  5. ^ Burt Carter. "Cephalopods". Invertebrate Paleobiology. Archived from the original on 2012-04-02. Retrieved 2011-09-22.
  6. ^ Elbroch, Mark "Animal Skulls: A Guide to North American Species", Stackpole Books 2006, p9
  7. ^ William F. Perrin; Bernd Würsig; J.G.M. Thewissen (26 February 2009). Encyclopedia of Marine Mammals. Academic Press. ISBN 978-0-08-091993-5. Archived from the original on 2 September 2020. Retrieved 12 September 2020.
  8. ^ "Basic anatomy of Cetaceans - Dolphins". Robin's Island. Archived from the original on November 17, 2010. Retrieved November 7, 2010.
  9. ^ Wueringer, Barbara E.; Squire, Lyle; Kajiura, Stephen M.; Hart, Nathan S.; Collin, Shaun P. (2012). "The function of the sawfish's saw". Current Biology. 22 (5): R150–R151. doi:10.1016/j.cub.2012.01.055. PMID 22401891.