Biology:Colobognatha

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Short description: Clade of millipedes

Colobognatha
Octoglena sierra (Family Polyzoniidae) (3405605943).jpg
Octoglena sierra (Polyzoniida)
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Subphylum: Myriapoda
Class: Diplopoda
Subclass: Chilognatha
Infraclass: Helminthomorpha
Subterclass: Colobognatha
Brandt, 1834
Orders

Platydesmida
Polyzoniida
Siphonocryptida
Siphonophorida

Colobognatha is a clade (formally considered a subterclass) of helminthomorph millipedes containing four orders: Platydesmida, Polyzoniida, Siphonocryptida, and Siphonophorida.[1]

Description

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

Wikidata ☰ Q16980877 entry