Villares Gabriela, Russo Virginia Lo, Pastor Catalina
Centro Nacional Patagónico (CONICET). C.C. 128 (9120) Puerto Madryn, Chubut. Argentina.; Email:
Centro Nacional Patagónico (CONICET). C.C. 128 (9120) Puerto Madryn, Chubut. Argentina.; Email: unknown.
Zootaxa. 2015 Dec 17;4058(3):417-28. doi: 10.11646/zootaxa.4058.3.8.
Pontonema golfonuevensis sp. nov. from Chubut Province, Argentina is described and a description of the male of Pontonema incisum Wieser, 1953 from Chubut and Santa Cruz Provinces is provided. Pontonema golfonuevensis sp. nov. is characterized by having the slender sub-ventral teeth 25 µm long located at 24 % of stoma length, a short, broad dorsal tooth at 60 % of stoma length, excretory pore opening at level of base of the buccal cavity, and by having a ventral precloacal sensory field with four papillae and a glandular sub-ventral area with seven papilliform sensillae. The male of P. incisum has long slender sub-ventral teeth at 36 % of stoma length, a short broad dorsal tooth at 72 % of stoma length, excretory pore about two buccal cavity lengths from the anterior end, and a ventral precloacal sensory field without papillae and a glandular sub-ventral area with twelve to fourteen papilliform sensillae. A key for identification of males of Pontonema is presented.
描述了来自阿根廷丘布特省的新物种戈尔福内文斯蓬托线虫（Pontonema golfonuevensis sp. nov.），并提供了来自丘布特省和圣克鲁斯省的1953年维泽尔所描述的切割蓬托线虫（Pontonema incisum）雄性个体的描述。戈尔福内文斯蓬托线虫新物种的特征在于，其细长的腹侧亚齿长25微米，位于口长度的24%处，在口长度的60%处有一个短而宽的背齿，排泄孔开口于颊腔基部水平，并且有一个具有四个乳突的腹侧泄殖腔前感觉区和一个具有七个乳头状感器的腺性腹侧亚区。切割蓬托线虫的雄性个体在口长度的36%处有长而细长的腹侧亚齿，在口长度的72%处有一个短而宽的背齿，排泄孔距前端约两个颊腔长度，并且有一个无乳突的腹侧泄殖腔前感觉区和一个具有十二至十四个乳头状感器的腺性腹侧亚区。给出了一个用于鉴定蓬托线虫雄性个体的检索表。
