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Unravelling the convoluted nomenclature of Marphysa simplex (Annelida, Eunicidae) with the proposal of a new name and the re-description of species
Zoosystematics and Evolution ( IF 2 ) Pub Date : 2021-02-10 , DOI: 10.3897/zse.97.59559
Isabel Cristina Molina-Acevedo , Izwandy Idris

Marphysa simplex is a name that three species bear within the same genus, but each has a different authority and morphological characteristics. This homonymy condition leads to taxonomic confusion and the finite designation of name-bearing is imperative. The current study focuses on two species identified as M. simplex Crossland, 1903 and M. simplex Treadwell, 1922 and a third one, recently considered a secondary homonymy, M. simplex (Langerhans, 1884), is also assessed. The available type specimens were examined and re-described in detail using updated characters and the original descriptions. Marphysa simplex (Langerhans, 1884) is herein judged as an indeterminable species. Marphysa simplex Crossland, 1903 is confirmed as a junior synonym of M. teretiuscula (Schmarda, 1861a) because the differences are minimal. Moreover, M. teretiuscula has characteristics similar to Group B2 (Sanguinea-group; only compound spinigers), instead of the Teretiuscula-group (compound spinigers in the anterior region, subacicular limbate in all chaetigers). On the other hand, M. simplex Treadwell, 1922 is a junior primary homonym of Crossland’s species replaced by M. fijiensisnom. nov. with the chaetal arrangement similar to Group A (limbate chaetae only). In conclusion, the name M. simplex is now unacceptable. The hypothesis on species group only with limbate chaetae and the redescription on M. teretiuscula is also given.

中文翻译:

通过重新命名和重新描述物种的方法来解开简单的玛菲莎(Marphysa simplex)(Annelida,Eunicidae)的术语

单一藻类的名称是三个属同一属的物种,但每个物种具有不同的权限和形态特征。这种同音异义的条件导致了分类学上的混乱,并且必须对名称进行有限的指定。目前的研究集中在两个物种上,分别是1903年的克罗斯克罗斯兰(M. simplex Crossland)和1922年的M. simplex Treadwell,以及最近被认为是次生同名的M. simplex(Langerhans,1884)。检查了可用的类型标本,并使用更新的字符和原始说明进行了详细描述。本文认为玛格沙(Marphysa simplex)(Langerhans,1884)是无法确定的物种。由于差异极小,因此,将简单的Marphysa Crossx Crossland(1903年)确认为teretiuscula(Schmarda,1861a)的初级同义词。而且,M teretiuscula具有与B2组(Sanguinea组;仅复合小蜘蛛)相似的特征,而不是Teretiuscula组(前部区域的复合小蜘蛛,所有小动物的针状边缘)类似。另一方面,M。simplex Treadwell,1922年是Crossland物种的初级同音,被fi.ensis取代。十一月 具有类似于A组的排球安排(仅适用于下肢排骨)。总之,名称M. simplex现在不可接受。还给出了仅具有边缘壳类的物种组假说,并给出了对叔丁酸杆菌的重新描述。1922年是Crossland物种的一个初级主要同音词,被M. fijiensisnom取代。十一月 具有类似于A组的排球安排(仅适用于下肢排骨)。总之,名称M. simplex现在不可接受。还给出了仅具有边缘壳类的物种组假说,并给出了对叔丁酸杆菌的重新描述。1922年是Crossland物种的一个初级主要同音词,被M. fijiensisnom取代。十一月 具有类似于A组的排球安排(仅适用于下肢排骨)。总之,名称M. simplex现在不可接受。还给出了仅具有边缘壳类的物种组假说,并给出了对叔丁酸杆菌的重新描述。
更新日期:2021-02-10
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