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Rostrum (anatomy)

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Title: Rostrum (anatomy)  
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Subject: Bottlenose dolphin, List of threatened rays, Jurellana, American lobster, Scoloplax
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Rostrum (anatomy)

Crustacean: the rostrum of the shrimp Macrobrachium rosenbergii is serrated along both edges.
Insect: assassin bug piercing its prey with its rostrum
Cephalopod: the two-part beak of a giant squid
The rostrum of a bottlenose dolphin

The term rostrum (from the Latin rostrum, meaning "beak") is used for a number of unrelated structures in different groups of animals:

  • In crustaceans, the rostrum is the forward extension of the carapace in front of the eyes.[1] It is generally a rigid structure, but can be connected by a hinged joint, as seen in Leptostraca.[2]

References

  1. ^ Charles Drew (November 17, 2003). "Crustacea".  
  2. ^ Todd A. Haney, Joel W. Martin & Eric W. Vetter (2007). "Leptostraca". In James T. Carlton. The Light and Smith Manual: Intertidal Invertebrates from Central California to Oregon (4th ed.).  
  3. ^ George Gordh, Gordon Gordh & David Headrick (2003). "Rostrum". A Dictionary of Entomology.  
  4. ^ Douglas Grant Smith (2001). "Mollusca (gastropods, pelecypods)". Pennak's freshwater invertebrates of the United States: Porifera to Crustacea (4th ed.).  
  5. ^ Burt Carter. "Cephalopods". Invertebrate Paleobiology. 
  6. ^ "Basic anatomy of Cetaceans - Dolphins". Robin's Island. Retrieved November 7, 2010. 
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