Variation in ovipositor morphology among laniatorean harvestmen (Arachnida: Opiliones)
Variation in ovipositor morphology among laniatorean harvestmen (Arachnida: Opiliones)
复制标题
毛蛛类收割者产卵器形态的变化（蛛形纲：Opiliones）
DOI：
10.1007/s00435-015-0269-4
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发表时间：
2015
期刊：
影响因子：
1
通讯作者：
M. Milne
中科院分区：
文献类型：
--
作者：
V. R. Townsend;Melinda S. Bertram;M. Milne
有相对较少的出版插图的产卵器的收获属于亚目Laniatores。因此，这些收获者的产卵器在很大程度上被忽视的信息字符的来源。我们用扫描电子显微镜检查代表几个主要谱系（Gonyleptoidea，Phalangodoidea，Samooidea，Zalmoxoidea）的8个物种的产卵器。我们观察到种间变异相对于外部裂片的远端，远端的表面纹理的数量，和外周刚毛的形态。Bishopella（Phalangodoidea）和Stygnomma（Samooidea）的产卵器在外观上相似，但在外周刚毛的数量和位置上存在差异。我们观察到显着的gonyleptoidean物种之间的种间变异，特别是相对于外周刚毛。Zalmoxoidea收获者的产卵器有光滑的，匙形的外周刚毛，但不同的远端的表面纹理。这些刚毛的异常形态以前没有观察到，可能代表了该家族的一种新的突触形态。产卵器形态的基础上的字符有可能照亮在这些收获的家庭和属之间的系统发育关系。
There are relatively few published illustrations of ovipositors for harvestmen belonging to the suborder Laniatores. As a result, the ovipositor of these harvestmen has largely been ignored as a source of informative characters. We used scanning electron microscopy to examine the ovipositor of eight species representing several major lineages (Gonyleptoidea, Phalangodoidea, Samooidea, and Zalmoxoidea). We observed interspecific variation with respect to the number of external lobes on the distal tip, the surface texture of the distal tip, and the morphology of the peripheral setae. The ovipositors of Bishopella (Phalangodoidea) and Stygnomma (Samooidea) were similar in appearance and differed with respect to the number and position of peripheral setae. We observed significant interspecific variation among the gonyleptoidean species, especially with respect to the peripheral setae. The ovipositors of Zalmoxoidea harvestmen had smooth, spatulate peripheral setae but differed with respect to the surface texture of the distal tip. The unusual morphology of these setae has not been observed previously and may represent a new synapomorphy for the family. Characters based upon ovipositor morphology have the potential to illuminate phylogenetic relationships within and between families and genera in these harvestmen.