Temnosewellia semperi (Platyhelminthes: Temnocephalida) from Maydelliathelphusa lugubris (Arthropoda: Gercarcinucidae) of the state of Meghalaya, North East India

Q2 Agricultural and Biological Sciences

Invertebrate Zoology Pub Date : 2022-03-01 DOI:10.15298/invertzool.19.1.02

L. M. Jyrwa, N. G. Kharir, E. Sohsley, P. Sungoh, S. Khongwir

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引用次数: 1

Abstract

: Temnocephalids are rhabdocoel flatworms that are found either commensal or parasitic on a wide variety of hosts. In India, the occurrence of temnocephalids was recorded and studied from preserved specimens. Regarding the morphology of the specimens, vague descriptions were given. Since then, no following studies were found. This study provides a new insight regarding the specimens found on a freshwater crab, Maydelliathelphusa lugubris (Wood-Mason, 1871). The specimens are identified as Temnosewellia semperi (Weber, 1890) based on the presence of brown pigment, five tentacles, posterior adhesive disc, five syncytial plates: tentacular, postentacular, body, peduncular and adhesive plates, the excretory pore lying on the dorsal side of the body plate and the absence of papillae on the dorsal surface or tentacular surface. The most important diagnostic feature is the structure of the cirrus which is the main taxonomic character to identify the species. Temnosewellia semperi has a nearly straight cirrus with the distal part slightly dilated as observed in this species.

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来自印度东北部梅加拉亚邦的Maydelliathelphusa lugubris(节肢动物:gercarcinucides科)的Temnosewellia semperi(扁形纲:Temnocephalida)

Temnocephalids是一种横纹肌扁形虫，可在多种寄主上共生或寄生。在印度，从保存的标本中记录和研究了temnocephalids的发生。关于标本的形态，给出了模糊的描述。从那以后，没有发现后续的研究。这项研究为淡水蟹Maydelliathelphusa lugubris (Wood-Mason, 1871)的标本提供了新的见解。这些标本被鉴定为Temnosewellia semperi (Weber, 1890)，根据存在棕色色素，五个触手，后粘连盘，五个合胞板:触手，触手后，体，柄和粘连板，排泄孔位于体板的背侧，背表面或触手表面没有乳头。最重要的诊断特征是卷云的结构，这是识别该物种的主要分类特征。Temnosewellia semperi有近直的卷云，远端部稍扩张，如在本种中观察到的。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Invertebrate Zoology Agricultural and Biological Sciences-Animal Science and Zoology

CiteScore

2.40

自引率

0.00%

发文量

期刊介绍： Scientific peer-reviewed journal INVERTEBRATE ZOOLOGY publishes original papers, reviews and brief communications on morphology, anatomy, embryology, taxonomy, phylogeny, and ecology of any group of invertebrates from protistans to lower chordates. INVERTEBRATE ZOOLOGY accepts manuscripts in English or Russian and publishes them in printed and electronic versions. The Russian translations of English titles, abstracts and figure captions of the papers written by non-Russian authors can be provided by the editors. Invertebrate Zoology invites authors to publish extended monographic manuscripts after usual reviewing procedure. The monographic manuscripts can include up to 400 thousand letters and be prepared in English or in Russian. Accepted monographic manuscripts will have priority to be published in the nearest issue of the journal.