Paramonohystera weihaiensis sp.nov.(Xyalidae,Nematoda) from the intertidal beach of the Yellow Sea,China |
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Authors: | HUANG Yong SUN Jing |
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Abstract: | A new species of free-living marine nematode of the genus Paramonohystera was described from the intertidal beach,Weihai.Paramonohystera weihaiensis sp.nov.is characterized by cervical region with a circle of long setae;tail sexual dimorphism,male tail angled dorsally with sharp narrowed of the body at the cloaca,female tail ordinary conico-cylindrical; spicules slender,2.5 abd long; gubemaculum plate,enlarged distal end with two teeth,without apophysis; precloacal supplements absent;Four caudal gland cells obviously extended to tail.The new species differs from the other fourteen known valid congeners by the combination of its characteristics:a circle of long cervical setae,tail sexual dimorphism,spicules slender,2.5 abd long,gubernaculum plate with a distal pair of teeth. |
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