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Integrative descriptions of two new Macrobiotus species (Tardigrada, Eutardigrada, Macrobiotidae) from Mississippi (USA) and Crete (Greece)
Zoosystematics and Evolution ( IF 1.6 ) Pub Date : 2021-05-19 , DOI: 10.3897/zse.97.65280
Matteo Vecchi , Daniel Stec

In this paper, we describe two new Macrobiotus species from Mississippi (USA) and Crete (Greece) by means of integrative taxonomy. Detailed morphological data from light and scanning electron microscopy, as well as molecular data (sequences of four genetic markers: 18S rRNA, 28S rRNA, ITS-2 and COI), are provided in support of the descriptions of the new species. Macrobiotus annewintersaesp. nov. from Mississippi belongs to the Macrobiotus persimilis complex (Macrobiotus clade B) and exhibits a unique egg processes morphology, similar only to Macrobiotus anemone Meyer, Domingue & Hinton, 2014, but mainly differs from that species by the presence of eyes, granulation on all legs, dentate lunulae on legs IV, and of bubble-like structures within the tentacular arms that are present on the distal portion of the egg processes. Macrobiotus rybakisp. nov. from Crete belongs to the Macrobiotus clade A and is most similar to Macrobiotus dariae Pilato & Bertolani, 2004, Macrobiotus noemiae Roszkowska & Kaczmarek, 2019, Macrobiotus santoroi Pilato & D’Urso, 1976, and Macrobiotus serratus Bertolani, Guidi & Rebecchi, 1996, but differs from them mainly in the morphological details of its egg processes and chorion reticulation, but also by a number of morphometric characters. In light of the specific morphology of the egg processes of Macrobiotus annewintersaesp. nov. and Macrobiotus anemone, that are equipped with tentacular arms instead of proper terminal disc, we also provide an updated definition of the Macrobiotus persimilis complex.

中文翻译:

对来自密西西比州(美国)和克里特岛(希腊)的两种新的Macrobiotus物种(Tardigrada,Eutardigrada,Macrobiotidae)的综合描述

在本文中,我们通过综合分类法描述了来自密西西比州(美国)和克里特岛(希腊)的两个新的Macrobiotus物种。提供了来自光学和扫描电子显微镜的详细形态学数据,以及分子数据(四个遗传标记的序列:18S rRNA,28S rRNA,ITS-2和COI的序列),以支持对新物种的描述。大型沼虾 十一月 来自密西西比州的per属于Macrobiotus persimilis复合体(Macrobiotus进化枝B),并表现出独特的卵过程形态,仅类似于Macrobiotus银莲花Meyer,Domingue&Hinton,2014年,但主要区别在于存在该物种的眼睛,四肢肉芽,在腿IV上具齿状脉的小节,以及在卵突的远端部分上存在的触手臂内的气泡状结构。黑麦草。十一月 来自克里特岛的属于Macrobiotus进化枝A,最类似于Macrobiotus dariae Pilato&Bertolani,2004,Macrobiotus noemiae Roszkowska&Kaczmarek,2019,Macrobiotus santoroi Pilato&D'Urso,1976,以及Macrobiotus serratus Bertolani,Guidi&Rebecchi,1996但与它们的主要区别在于其卵形过程和绒毛膜网状结构的形态学细节,而且还具有许多形态特征。根据Macrobiotus annewintersaesp卵子过程的特定形态。十一月 和配备触角臂而不是适当末端盘的Macrobiotus海葵,我们还提供了Permacilis persimilis复合物的更新定义。No. Macroemiatus Noemiae Roszkowska和Kaczmarek,2019,Santoroi Santoroi Pilato&D'Urso,1976和Macrobiotus serratus Bertolani,Guidi&Rebecchi,1996,但它们之间的区别主要在于其卵形过程和绒毛膜网状结构的形态学细节,但也有差异形态计量字符的数量。根据Macrobiotus annewintersaesp卵子过程的特定形态。十一月 和配备触角臂而不是适当末端盘的Macrobiotus海葵,我们还提供了Permacilis persimilis复合物的更新定义。Nomacae noemiae Roszkowska&Kaczmarek,2019; Santoroi Pilato&D'Urso,1976;以及Macrobiotus serratus Bertolani,Guidi&Rebecchi,1996,但它们之间的区别主要在于其卵形过程和绒毛膜网状结构的形态学细节,但也有差异形态计量字符的数量。根据Macrobiotus annewintersaesp卵子过程的特定形态。十一月 和配备触角臂而不是适当末端盘的Macrobiotus海葵,我们还提供了Permacilis persimilis复合物的更新定义。而且还包含许多形态特征。根据Macrobiotus annewintersaesp卵子过程的特定形态。十一月 和配备触角臂而不是适当末端盘的Macrobiotus海葵,我们还提供了Permacilis persimilis复合物的更新定义。而且还包含许多形态特征。根据Macrobiotus annewintersaesp卵子过程的特定形态。十一月 和配备触角臂而不是适当末端盘的Macrobiotus海葵,我们还提供了Permacilis persimilis复合物的更新定义。
更新日期:2021-05-19
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