Colobognatha
| Colobognatha | |
|---|---|
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| Octoglena sierra (Polyzoniida) | |
| Scientific classification Edit this classification | |
| Kingdom: | Animalia |
| Phylum: | Arthropoda |
| Subphylum: | Myriapoda |
| Class: | Diplopoda |
| Subclass: | Chilognatha |
| Infraclass: | Helminthomorpha |
| Subterclass: | Colobognatha Brandt, 1834 |
| Orders | |
Colobognatha is a clade (formally considered a subterclass) of helminthomorph millipedes containing four orders: Platydesmida, Polyzoniida, Siphonocryptida, and Siphonophorida.[1]
Description
[edit | edit source]The 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]
References
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