| HUANG Mian,SUN Jing,HUANG Yong. 2018. Two new species of the genus Wieseria (Nematoda: Enoplaida: Oxystominidae) from the Jiaozhou Bay. Acta Oceanologica Sinica, 37(10):157－160 |
| Two new species of the genus Wieseria (Nematoda: Enoplaida: Oxystominidae) from the Jiaozhou Bay |
| 胶州湾自由生活线虫Wieseria属的两个新种 |
| Received:July 05, 2017 |
| DOI：10.1007/s13131-018-1319-9 |
| Key words:Wieseria sinica sp. nov. Wieseria tenuisa sp. nov. free-living marine nematode taxonomy |
| 中文关键词: 新种Wieseria sinica sp. nov. 新种Wieseria tenuisa sp. nov. 自由生活海洋线虫 分类学 |
| 基金项目:The Natural Science Foundation of Shandong Province under contract No. ZR2014BM008; the National Natural Science Foundation of China under contract No. 41676146. |
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| Abstract: |
| Two new species of free-living marine nematodes of the genus Wieseria are described from the sublittoral sediment of the Jiaozhou Bay in Qingdao. Wieseria sinica sp. nov. is characterized by having short labial and cephalic setae in a backward direction; oblong amphidial foveas with double contour; arcuate spicules with alea; ring-like guberculum; and clavated tail. Wieseria tenuisa sp. nov. is characterized by its very large “a” value (133.6), long labial setae in a forward direction; spicules with alea and hooked proximal end; rodlike gubernaculums; and relatively longer clavated tail (7.9 a.b.d. long). It differs from Wieseria sinica sp. nov. mainly by the longer labial setae, slightly straight spicules with hooked proximal end, and its thinner body. Amended dichotomous key to male species of Wieseria is provided. |
| 中文摘要: |
| 文章描述了采自青岛胶州湾潮下带沉积物中自由生活线虫Wieseria属的两个新种。新种Wieseria sinica sp.nov.特征为具有短的唇刚毛和头刚毛，且指向后方；具有椭圆形双边化感器；弓形的交接刺具有翼膜；环状的引带以及棒状尾。新种Wieseria tenuisa sp.nov.特征为具有大的德曼值（133.6）；长的唇刚毛指向前方；交接刺具有翼膜，近端呈钩状；引带呈棒状；具有相当长的棒状尾（长度相当于7.9倍泄殖腔相应体径）。它区别于新种Wieseria sinica sp.nov.主要在于更长的唇刚毛，且指向前方；交接刺相对较直且具有钩状近端，身体更加细小（德曼“a”值较大）。文章更新完善了的Wieseria属的二岐检索表。 |
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