from Wikipedia, the free encyclopedia
Telson (detail) from Hemimysis anomala . Right: uropod

The telson (from ancient Greek τέλσον telson , German 'border' , in older literature often referred to as pygidium ) is the last section of the body of the arthropods that supports the anus . It is, as the Acron (the first body portion) no actual segment since it repeating the internal structure of these structures is missing, and thus corresponds to the Pygidium the annelids (annelids). The telson can merge with the segments in front of it, as in the pleotelson of the woodlice (Isopoda) or the pygidium of the trilobites .


  • Wilfried Westheide , Reinhard Rieger (Hrsg.): Special zoology. Part 1: Protozoa and invertebrates . 2nd Edition. Spektrum Akademischer Verlag, Munich 2007, ISBN 978-3-8274-1575-2 , pp. 191, 443 .