马陆总目
马陆总目(学名:Juliformia),亦作马陆超目,是倍足纲的生物。
马陆总目包括下列四个目:
Siphoniulida目 Cook, 1895原属马陆总目,后来Shelley (2003)将本目列于蠕形马陆下纲(Helminthomorpha)之下的地位未定分类。Shear (2011)基于其雄性生殖肢(gonopods)的结构及「喷丝头」(spinnerets)的存在而归入刺马陆总目。
单词 | Juliformia |
释义 |
Juliformia
中文百科
马陆总目马陆总目(学名:Juliformia),亦作马陆超目,是倍足纲的生物。 马陆总目包括下列四个目: Siphoniulida目 Cook, 1895原属马陆总目,后来Shelley (2003)将本目列于蠕形马陆下纲(Helminthomorpha)之下的地位未定分类。Shear (2011)基于其雄性生殖肢(gonopods)的结构及「喷丝头」(spinnerets)的存在而归入刺马陆总目。
英语百科
Juliformia 马陆总目![]() ![]() Juliformia is a taxonomic superorder of millipedes containing three living orders: Julida, Spirobolida, and Spirostreptida, and the extinct group Xyloiuloidea known only from fossils. The species possess long cylindrical bodies with sclerites (skeletal plates consisting of ventral sternites, lateral pleurites, and dorsal tergites) fused into complete rings. Juliform millipedes possess defensive repugnatorial glands on all body segments except the last few, and are the only known millipedes to produce quinones in their defensive secretions. Juliform males have two pairs of gonopods consisting of the modified 8th and 9th pair of legs: in Julida and Spirobolida the posterior gonopods (9th leg pair) are primarily involved in sperm-transferring, while in Spirostreptida it is the anterior gonopods (8th leg pair). Juliformians also lack Tömösváry organs and have a large collum (first body segment) which overhangs the rear of the head. |
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