| 词条 | Colobognatha |
| 释义 |
| image = Octoglena sierra (Family Polyzoniidae) (3405605943).jpg | image_caption = Octoglena sierra (Polyzoniida) | taxon = Colobognatha | authority = Brandt, 1834 | subdivision_ranks = Orders | subdivision =Platydesmida Polyzoniida Siphonocryptida Siphonophorida }}Colobognatha is a clade (formally considered a subterclass) of helminthomorph millipedes containing four orders: Platydesmida, Polyzoniida, Siphonocryptida, and Siphonophorida.[1] DescriptionThe Colobognatha are united by several shared traits (synapomorphies). Males have two pairs of simple, leg-like gonopods, consisting of the rear leg pair of body segment 7 and the foreword-most leg pair of segment 8. They possess tubular defensive glands that open on the sides of the body, and lack a palp-like structure on their gnathochilaria. Other traits found in colobognathans, but not exclusively, include a distinctly narrow head, lack of Tömösváry organs, and no more than two pairs of ocelli.[2][3] References1. ^{{cite journal|last=Shear|first=W.|title=Class Diplopoda de Blainville in Gervais, 1844. In: Zhang, Z.-Q. (Ed.) Animal biodiversity: An outline of higher-level classification and survey of taxonomic richness|journal=Zootaxa|year=2011|volume=3148|pages=159–164|url=http://www.mapress.com/zootaxa/2011/f/zt03148p164.pdf|ref=Shear2011}} {{Portal|Arthropods}}{{Millipedes}}{{Taxonbar|from=Q16980877}}2. ^{{cite web|title=Millipede Body Organization|work=Milli-PEET: The class Diplopoda|publisher=The Field Museum, Chicago|accessdate=18 March 2014|url=http://fieldmuseum.org/explore/milli-peet-millipede-body-organization}} 3. ^{{cite web|title=Putative apomorphies of millipede clades|url=http://fieldmuseum.org/sites/default/files/millipede_apomorphies.pdf|work=Milli-PEET: Millipede Systematics|publisher=The Field Museum, Chicago, IL|date=26 September 2006}} 2 : Millipede taxonomy|Taxa named by Johann Friedrich von Brandt |
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