Daptonema parabreviseta sp. nov.(Xyalidae,Nematoda) from the Jiaozhou Bay of the Yellow Sea,China |
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Authors: | HUANG Mian SUN Jing HUANG Yong |
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Institution: | College of Life Sciences;Key Laboratory of Ecology and Biodiversity of Shandong Colleges and University |
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Abstract: | A new species of free-living marine nematode of the genus Daptonema Cobb, 1920 is described from the sublittoral sediment of the Jiaozhou Bay, Qingdao. Daptonema parabreviseta sp. nov.is characterized by having narrowed anterior end; small funnel-shaped buccal cavity; short cephalic setae;spicules with bulbiform proximal end and pointed distal end; gubercunalum tubular shape with a blunt dorsal apophysis. The female genital system presents a spacious postvulval sac. The new species closely resembles Daptonema brevisetosum Thanh & Gagarin, 2009. However, it differs from Daptonema brevisetosum by having relatively narrowed head(10 μm vs 20 μm); spicules with bulbiform proximal end and pointed distal end, not bifurcated at distal end. Female genital system with a spacious postvulval sac(vs absent). |
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Keywords: | new species free-living marine nematode taxonomy |
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