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名字:钩状股蛛
学名:Plynnon aduncum
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雄性体长2.70–2.92。1雄性体长2.92:背甲长1.36,宽1.07,宽:长=0.79;腹部长1.56,宽0.85。眼的直径与测量:前中眼0.07,前侧眼0.07,后中眼0.04,后侧眼0.07;前中眼间距0.04,前中侧眼间距0.01,前侧眼间距0.18,后中眼间距0.10,后中侧眼间距0.05,后侧眼间距0.28,前后侧眼间距0.05。眼域宽0.37,头区宽0.53,眼域宽:头区宽=0.70。头区:背甲宽=0.50。中眼域:长0.16,前边宽0.17,后边宽0.20。额高0.14,额高:前中眼直径=2。螯肢前齿堤2齿,后齿堤2齿。下唇长0.21,宽0.21。胸板长0.78,宽0.68。步足测量:步足I3.23(0.93,0.37,0.77,0.64,0.52),Ⅱ3.01(0.84,0.35,0.65,0.63,0.54),Ⅲ2.81(0.77,0.34,0.58,0.61,0.51),Ⅳ4.21(1.14,0.14,0.92,1.00,0.74)。足式:4123。所有腿节无刺;胫节I腹刺4对或前侧4,后侧3,胫节Ⅱ腹刺3对或前侧4,后侧3;后跗节I–Ⅱ腹刺1对。雄性触肢腿节远身端向腹面弯曲,无腿节突,腹面端部具浅凹槽的隆起;盾板前侧后端膨大,椭圆形;插入器短,鸟喙状,末端尖,指向后侧;跗舟顶端围绕插入器顶点具一簇粗扁的刚毛。雌性体长3.61:背甲长1.42,宽1.10,宽:长=0.77;腹部长2.19,宽1.35。眼的直径与测量:前中眼0.06,前侧眼0.07,后中眼0.04,后侧眼0.07;前中眼间距0.05,前中侧眼间距0.01,前侧眼间距0.19,后中眼间距0.13,后中侧眼间距0.05,后侧眼间距0.31,前后侧眼间距0.06。眼域宽0.39,头区宽0.69,眼域宽:头区宽=0.57。头区:背甲宽=0.62。中眼域:长0.17,前边宽0.17,后边宽0.21。额高0.12,额高:前中眼直径=2。下唇长0.22,宽0.22。胸板长0.88,宽0.72。步足测量:步足I3.69(1.06,0.42,0.89,0.69,0.63),Ⅱ3.38(0.98,0.37,0.76,0.66,0.61),Ⅲ3.11(0.85,0.37,0.66,0.68,0.55),Ⅳ3.83(1.33,0.42,0.11,1.17,0.80)。足式:4123。所有腿节无刺;胫节I腹面前侧刺5,后侧刺4,胫节Ⅱ腹面前侧刺4,后侧刺3;后跗节I–Ⅱ腹刺1对。外雌板无硬化,腹面观内部结构可见;插入孔小,具短的硬化外缘,位于外雌板后位两侧,相距远;交配管前端近直角弯折,后端直,横向;黏液囊大,前位,具硬化的基部;连接管细,比交配管短,弧形弯曲;纳精囊长卵形,后位;受精管硬化。