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Annelids

      The annelids (also called "ringed worms"), formally called Annelida (from French annelés "ringed ones", ultimately from Latin anellus "little ring"), are a large phylum of segmented worms, with over 17,000 modern species including ragworms, earthworms and leeches. They are found in marine environments from tidal zones to hydrothermal vents, in freshwater, and in moist terrestrial environments. Although most textbooks still use the traditional division into polychaetes (almost all marine), oligochaetes (which include earthworms) and leech-like species, research since 1997 has radically changed this scheme, viewing leeches as a sub-group of oligochaetes and oligochaetes as a sub-group of polychaetes. In addition, the Pogonophora, Echiura and Sipuncula, previously regarded as separate phyla, are now regarded as sub-groups of polychaetes. Annelids are considered members of the Lophotrochozoa, a "super-phylum" of protostomes that also includes molluscs, brachiopods, flatworms and nemerteans.

Source: http://en.wikipedia.org/wiki/Annelid
KettneritesTonarová et al. (2012), fig. 6.Zfoto PT22
KettneritesAD Tonarová et al. (2012) PT26
KettneritesAD Tonarová et al. (2012) PT8
KettneritesAD Tonarová et al. (2012)foto PT11
Kettnerites PT3
KettneritesTonarová et al (2012), fig. 6Y PT1
Kettnerites PT1
KettneritesTonarová et al. (2012), fig. 6.ACfoto PT7
KettneritesTonarová et al (2012), fig. 6Dfoto PT7
Kettneritesfoto PT5
KettneritesTonarová et al (2012), fig. 6AAfoto PT5
Kettnerites MŠ2806
Kettnerites MŠ2803
Lepidocoelus Ich44
Leptoprion Kielan - Jaworowska, 1966Tonarová et al (2012), fig. 6Lfoto PT5
Leptoprion Kielan - Jaworowska, 1966AD Tonarová et al. (2012) PT10
Lunoprionella symmetrica Eisenack, 1975Tonarová et al. (2012), fig. 3.AE PT25
Lunoprionella symmetrica Eisenack, 1975Tonarová et al. (2012), fig. 3.AD PT26
Lunoprionella symmetrica Eisenack, 1975Tonarová et al (2012), fig. 4Mfoto PT5
Lunoprionella symmetrica Eisenack, 1975Tonarová et al. (2012), fig. 3.Z PT24

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