Systematic Parasitology

, Volume 91, Issue 2, pp 147–155 | Cite as

Sharpilosentis peruviensis n. g., n. sp. (Acanthocephala: Diplosentidae) from freshwater catfishes (Siluriformes) in the Amazonia

Article

Abstract

Sharpilosentis peruviensis n. g., n. sp. is described from the catfishes Duopalatinus cf. peruanus Eigenmann & Allen (type-host) and Oxydoras niger (Valenciennes) in the River Amazon basin, Peru. The new species belongs to the subfamily Diplosentinae Tubangui & Masilungan, 1937 of the family Diplosentidae Tubangui & Masilungan, 1937 because of its possession of an unarmed trunk, a cylindrical proboscis, proboscis hooks arranged in longitudinal rows and two tubular cement glands of the same length in males. Sharpilosentis n. g. differs from the other genera of the Diplosentidae in the morphology of the reproductive system: males have a large muscular penis covered with small tubercles and the vulva of females is devoid of muscular sphincters and the cephalic ganglion is located between the second and third part of the proboscis receptacle. In addition, proboscis hooks are of three types: large hooks with simple roots in the anterior part of the proboscis, transitional 6th hook in one from two adjacent rows with bifurcated root in the distal part and small hooks without roots in the posterior part of the proboscis. A partial sequence for the mitochondrial cox1 gene is provided for this new taxon. The taxonomic composition of the family Diplosentidae is discussed.

Notes

Acknowledgements

Thanks are due to Martin Mortenthaler and his family, Acuario Río Momon, Iquitos, Peru, for providing facilities for fish examination and supplying fish from Santa Clara, Río Nanay, Carlos A. Mendoza-Palmero and Alain de Chambrier for help with fish examination at Iquitos. The authors are much obliged to Simona Georgieva from the Institute of Parasitology who obtained the cox1 sequence for the new species. Support by authorities of the Czech Embassy in Lima, Peru and Peruvian Embassy in Prague, Czech Republic, in particular by Marina Landaveri, Ambassador of Peru in the Czech Republic, is also greatly appreciated. This study was partly supported by the Czech Science Foundation (Project No. P505/12/G112), the Institute of Parasitology, AS CR, České Budějovice (RVO: 60077344) and the Ukrainian-Czech joint project “Helminth parasites in aquatic ecosystems: their diversity and life-cycles in the changing world”.

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Copyright information

© Springer Science+Business Media Dordrecht 2015

Authors and Affiliations

  1. 1.Department of Parasitology, Schmalhausen Institute of ZoologyUkrainian National Academy of SciencesKievUkraine
  2. 2.Institute of ParasitologyBiology Centre of the Czech Academy of SciencesČeské BudějoviceCzech Republic

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