Uropod

Uropods are posterior appendages found on a wide variety of crustaceans. They typically have functions in locomotion.

For the hind part of mammalian leukocytes, see Uropod (immunology).
The tail of Nephrops norvegicus – the uropods flank the telson; a diaeresis is visible on the exopod (outer part) of each uropod.

Definition

Uropods 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]

Form

Uropods 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]

gollark: I mean, you could use PHP too. I don't like it. But you could.
gollark: What I might do, though there are probably many ways to: make a program in Node.js or whatever (personal preference) which responds with whatever image is set to any requests for that, and which allows you to upload an image, converts it to the right format, then saves it to be sent when the ESP requests it.
gollark: And you want to be able to upload pictures to some sort of web thing to send to the ESP?
gollark: That... sounds possible though I don't know exactly what you mean.
gollark: Actually, you could probably just use a static file server and a program to swap out the file every now and then, that would work too.

References
  1. Claude Meisch (2007). "On the origin of the putative furca of the Ostracoda Crustacea". In Renate Matzke-Karasz, Koen Martens & Michael Schudack (ed.). Ostracodology – Linking Bio- and Geosciences: Proceedings of the 15th International Symposium on Ostracoda, Berlin, 2005. Hydrobiologia. Developments in Hydrobiology 197. 585. Springer. pp. 181–200. doi:10.1007/s10750-007-0637-2. ISBN 9781402064173.
  2. Dean Pentscheff (ed.). "Diaeresis". Crustacea Glossary. Natural History Museum of Los Angeles County. Retrieved June 28, 2012.
  3. S. S. Lal (2009). "Palaemon malcolmsonii". Practical Zoology: Invertebrate. Rastogi Publications. pp. 395–403. ISBN 978-81-7133-924-2.
  4. Dean Pentscheff (ed.). "Uropod". Crustacea Glossary. Natural History Museum of Los Angeles County. Retrieved June 28, 2012.
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