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Redescription of Porrocaecum semiteres (Zeder, 1800) (Nematoda: Ascaridida) from the Song Thrush Turdus philomelos (Passeriformes: Turdidae)

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Abstract

Introduction

Porrocaecum semiteres (Zeder, 1800) (Ascaridida: Ascaridoidea) occurs frequently in various birds in Europe. However, the knowledge of the morphology of this species remains insufficient.

Methods

Light and scanning electron microscopy were used to study the detailed morphology of adults of P. semiteres based on newly collected specimens from Turdus philomelos in the Czech Republic.

Results

Some previously unreported morphological features were revealed, including the presence of a medio-apical notch, 70–80 small conical denticles and one pair of submedial pores on each lip, the absence of caudal alae, the presence of four pairs of postcloacal papillae, and a single, medio-ventral precloacal papilla.

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Acknowledgements

The authors wish to thank František Marec (Institute of Entomology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic) for providing the freshly dead host and František Moravec (Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, České Budějovice, Czech Republic) for providing useful literature. We are also grateful to Dr. Hui-Xia Chen (Hebei Normal University, Shijiazhuang, China) for help with the illustrations. This study was supported by the National Natural Science Foundation of China (NSFC-31572231), Natural Science Foundation of Hebei Province (NSFH-C2016205088), the Youth Top Talent Support Program of Hebei Province for Liang Li, and the Institute of Parasitology (RVO: 60077344).

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Authors and Affiliations

  1. Key Laboratory of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal University, Shijiazhuang, 050024, Hebei, People’s Republic of China

    Liang Li

  2. Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, 370 05, České Budějovice, Czech Republic

    Liang Li & Tomáš Scholz

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  1. Liang Li
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  2. Tomáš Scholz
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Correspondence to Liang Li.

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Li, L., Scholz, T. Redescription of Porrocaecum semiteres (Zeder, 1800) (Nematoda: Ascaridida) from the Song Thrush Turdus philomelos (Passeriformes: Turdidae). Acta Parasit. 64, 1–6 (2019). https://doi.org/10.2478/s11686-018-00001-z

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