Marine Biodiversity

, Volume 44, Issue 3, pp 279–285 | Cite as

Two new species of Carcharodorhynchus Meixner, 1938 (Platyhelminthes: Rhabdocoela: Schizorhynchidae) from Brazil and Lanzarote

  • Patrick Reygel
  • Ernest Schockaert
  • Toon Janssen
  • Tom Artois
Diversity of marine meiofauna on the coast of Brazil


Two new turbellarian species of the kalyptorhynch taxon Carcharodorhynchus (Rhabdocoela: Schizorhynchidae) are described. C. brasiliensis n. sp. from Brazil differs from its congeners by the fact that only the ventral lip of the slightly asymmetrical proboscis bears denticles, arranged into two rows. It is also characterized by a unique combination of features: 10–12 testes arranged in two rows rostrally from the pharynx, elongated seminal vesicles, and the copulatory organ proper being a short cirrus, the distal tip of which is surrounded by a short sclerotized hood. C. worsaae n. sp. stands unique within the genus in that the male system has a long, double-walled stylet, which drains sperm and prostate secretion. Moreover, C. worsaae n. sp. has a markedly asymmetrical proboscis, with the dentition of the largest lip consisting of up to six rows of small denticles which are smallest proximally near the juncture with the smaller lip. The shorter lip has only large teeth. C. brasiliensis n. sp. is the first species of Carcharodorhynchus to be described from Brazil and the second for South America. C. worsaae is the first species of the taxon to be described from the West African coast.


Turbellaria Flatworms Schizorhynchia Biodiversity Taxonomy 



We thank Prof. Dr Katrine Worsaae and A. Martinez for organising the workshop in Lanzarote in 2011 and all participants of that workshop, including the divers, for helping with collecting. Dr Gustavo Fonseca is thanked for inviting us to the Taxonomy and Diversity of Marine Meiofauna, Brazil workshop (CEBIMar-USP), and all participants of that workshop for their help with the sampling. We thank Dr. Nikki Watson for correcting the language of the manuscript. Funding was provided by the São Paulo Research Foundation (FAPESP 2011/21289-3) and the Fonds Wetenschappelijk Onderzoek Vlaanderen (FWO, Research Foundation Flanders, project G.08.208).


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Copyright information

© Senckenberg Gesellschaft für Naturforschung and Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  • Patrick Reygel
    • 1
  • Ernest Schockaert
    • 1
  • Toon Janssen
    • 2
  • Tom Artois
    • 1
  1. 1.Centre for Environmental Sciences, Research Group Zoology: Biodiversity and ToxicologyHasselt UniversityDiepenbeekBelgium
  2. 2.Research Unit NematologyGhent UniversityGentBelgium

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