| 词条 | Uropod |
| 释义 |
Uropods are posterior appendages found on a wide variety of crustaceans. They typically have functions in locomotion. DefinitionUropods are often defined as the appendages of the last body segment of a crustacean.[1] An alternative definition suggested by Frederick R. Schram restricts the term to those structures arising from the segment before the anal segment (the segment which carries the anus).[1] Under this latter definition, the appendages of the anal segment are caudal rami, which are analogous to uropods.[1] FormUropods are typically biramous – comprising an endopod and an exopod. The exopod is typically the larger, and may be divided in two by a transverse suture known as the diaeresis.[2][3] The uropods may work in concert with the telson to form a "tail fan".[4] References1. ^1 2 {{cite journal |editor=Renate Matzke-Karasz, Koen Martens & Michael Schudack |year=2007 |title=Ostracodology – Linking Bio- and Geosciences: Proceedings of the 15th International Symposium on Ostracoda, Berlin, 2005 |series=Developments in Hydrobiology 197 |volume=585 |issue=1 |pages=181–200 |publisher=Springer |journal=Hydrobiologia |isbn=9781402064173 |chapter=On the origin of the putative furca of the Ostracoda Crustacea |author=Claude Meisch |doi=10.1007/s10750-007-0637-2}} 2. ^{{cite web |url=http://atiniui.nhm.org/glossary/define.html?term=Diaeresis |title=Diaeresis |work=Crustacea Glossary |publisher=Natural History Museum of Los Angeles County |editor=Dean Pentscheff |accessdate=June 28, 2012}} 3. ^{{cite book |author=S. S. Lal |year=2009 |title=Practical Zoology: Invertebrate |publisher=Rastogi Publications |isbn=978-81-7133-924-2 |chapter=Palaemon malcolmsonii |pages=395–403 |url=https://books.google.com/books?id=78keBH4IxmMC&pg=PA399}} 4. ^{{cite web |url=http://atiniui.nhm.org/glossary/define.html?term=Uropod |title=Uropod |work=Crustacea Glossary |publisher=Natural History Museum of Los Angeles County |editor=Dean Pentscheff |accessdate=June 28, 2012}} 1 : Crustacean anatomy |
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