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Lyriform vibration receptors in the web‐building spider, Nephila clavata (Araneidae: Araneae: Arachnida)
Entomological Research ( IF 1.3 ) Pub Date : 2020-08-21 , DOI: 10.1111/1748-5967.12470
Jae‐Hwi Seo 1 , Kyo‐Jin Kim 1 , Hoon Kim 1 , Myung‐Jin Moon 1
Affiliation  

Vibration receptors appear to be more necessary for web‐building spiders, but most knowledge of arachnid lyriform organs comes from the study of wandering spiders affected by ground vibrations. Here, we examined the fine structural aspects of the lyriform organs in the web‐building spider Nephila clavata using field emission scanning electron microscopy (FESEM) to fill the gap. The lyriform organ is found in all appendages, including the femur, patella, tibia, and metatarsal segments. A number of slit receptors of various sizes are distributed in the parallel orientation of the cuticle along the long axis. According to its fine structural characteristics, all lyriform organs of this spider are classified as a compound type with multiple cuticular slits. However, the number of cuticular slits per each lyriform organ varies considerably from a minimum of three to a maximum of 17. A total 35 pairs of lyriform organs were counted from an adult female spider. Except for small numerical variation in the 4th appendage, the distribution is remarkably constant within each appendage. Comparing the total number of cuticular slits per each appendage, the 3rd appendage has the highest number (85), but the 4th appendage shows the least number (63). Based on the total number of cuticular slits per leg segment, the patella segment seems to be the most sensitive to vibration reception in this orb‐web spider.

中文翻译:

建网蜘蛛 Nephila clavata 中的 Lyriform 振动受体(Araneidae:Araneae:Arachnida)

振动感受器似乎对结网蜘蛛来说更为必要,但对蛛形纲动物的琴状器官的大部分知识都来自对受地面振动影响的流浪蜘蛛的研究。在这里,我们使用场发射扫描电子显微镜(FESEM)检查了筑网蜘蛛 Nephila clavata 的琴状器官的精细结构方面以填补空白。琴状器官存在于所有附属器中,包括股骨、髌骨、胫骨和跖骨段。许多大小不一的狭缝受体沿着长轴分布在角质层的平行方向上。根据其精细的结构特征,该蜘蛛的所有琴状器官都被归类为具有多个表皮裂隙的复合型。然而,每个琴状器官的表皮裂隙数量差异很大,从最少 3 个到最多 17 个不等。从一只成年雌性蜘蛛中计算出总共 35 对琴状器官。除了第 4 附肢的小数值变化外,每个附肢内的分布非常恒定。比较每个附肢的角质层裂隙总数,第 3 附肢的数量最多(85),但第 4 附肢的数量最少(63)。根据每条腿段的表皮裂隙总数,髌骨段似乎对这种网状蜘蛛的振动接收最敏感。每个附肢内的分布非常稳定。比较每个附肢的角质层裂隙总数,第 3 附肢的数量最多(85),但第 4 附肢的数量最少(63)。根据每个腿节的表皮裂隙总数,髌骨节似乎对这种网状蜘蛛的振动接收最敏感。每个附肢内的分布非常稳定。比较每个附肢的角质层裂隙总数,第 3 附肢的数量最多(85),但第 4 附肢的数量最少(63)。根据每条腿段的表皮裂隙总数,髌骨段似乎对这种网状蜘蛛的振动接收最敏感。
更新日期:2020-08-21
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