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Systematic Parasitology

, Volume 96, Issue 6, pp 441–452 | Cite as

Walteriella n. g. (Monogenoidea: Dactylogyridae) from the gills of pimelodid catfishes (Siluriformes: Pimelodidae) from the Peruvian Amazonia based on morphological and molecular data

  • Carlos A. Mendoza-PalmeroEmail author
  • Edgar F. Mendoza-Franco
  • Aline A. Acosta
  • Tomáš Scholz
Article
  • 69 Downloads
Part of the following topical collections:
  1. Monogenea

Abstract

On the basis of morphological and molecular data, Walteriella n. g. is proposed to accommodate the dactylogyrid parasites Walteriella conica n. sp. (type-species) from the gills of Platynematichthys notatus (Jardine) (type-host) and Brachyplatystoma juruense (Boulenger), and Walteriella ophiocirrus n. sp. from the gills of Platystomatichthys sturio (Kner) (type-host), all fish host belonging to the Pimelodidae collected in the Peruvian Amazonia. Species of the new genus are distinguished from other dactylogyrids infecting Neotropical catfishes by the presence of a folded germarium, a male copulatory organ basally articulated to the accessory piece, a cone-shaped seminal receptacle, and ventral and dorsal bars with projections directed anteriorly. Both species of the new genus form a strongly supported lineage closely related to Dactylogyridae gen. sp. 13, a parasite of Hypophthalmus edentatus Spix & Agassiz (Pimelodidae) in an analysis of partial sequences of the 28S rRNA gene. The clade formed by species of Walteriella n. g. and Dactylogyridae gen. sp. 13 is closely related to other dactylogyrids infecting pimelodid catfishes. Based on the morphology of its haptoral elements and copulatory complex, the species Dactylogyridae gen. sp. 13 is morphologically different from species of Walteriella n. g., but its generic assignment is still unclear.

Notes

Acknowledgements

Two anonymous reviewers provided helpful suggestions. The authors are also indebted to Roman Kuchta (Institute of Parasitology, České Budějovice, Czech Republic), Alain de Chambrier (Museum of Natural History, Geneva, Switzerland), Andrea Šimková and Eva Řehulková (Masaryk University, Brno, Czech Republic) for their help during fish examination in Iquitos, Peru. Martin Mortenthaler, Aurora Ramírez and staff of the Acuario Río Momón in Iquitos provided invaluable assistance during fieldwork in Peru. This paper is dedicated to the memory of our dear friend and colleague M. Mortenthaler, who passed away unexpectedly during the preparation of this manuscript.

Funding

This study was financially supported by the Czech Science Foundation (project P505/12/G112) and the Institute of Parasitology (RVO: 60077344). CAMP was funded with a postdoctoral fellowship granted by the Consejo Nacional de Ciencia y Tecnología (CONACyT), Mexico (CVU 168157) and by the Percy Laden Fund, Linnaean Society of London to collect fish parasites in Peru.

Compliance with ethical standards

Conflict of interest

The authors declare that they have no conflict of interest.

Ethical approval

All applicable institutional, national and international guidelines for the care and use of animals were followed.

Supplementary material

11230_2019_9866_MOESM1_ESM.pdf (69 kb)
Supplementary material 1 (PDF 68 kb)

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Copyright information

© Springer Nature B.V. 2019

Authors and Affiliations

  1. 1.Department of Botany and Zoology, Faculty of ScienceMasaryk UniversityBrnoCzech Republic
  2. 2.Institute of ParasitologyBiology Centre of the Czech Academy of SciencesCeske BudejoviceCzech Republic
  3. 3.Instituto de EcologíaPesquerías y Oceanografía del Golfo de México (EPOMEX)CampecheMexico
  4. 4.Institute of Parasitology, Biology Centre of the Czech Academy of Sciences, and Faculty of ScienceUniversity of South BohemiaCeske BudejoviceCzech Republic

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