Redescription of Cosmocerca ornata (Dujardin, 1845) Diesing, 1861 (Nematoda: Cosmocercidae) from Ranid Frogs of West Bengal, India

  • Sujan Kumar SouEmail author
  • Kanchan Kumar Sow
  • Anadi Prasad Nandi
Research Article


Cosmocerca ornata is a widely distributed species reported from Europe, Asia and Africa. No description of Cosmocerca ornata as such is available from India though nematodes described as Cosmocerca indica, Cosmocerca macrogubernaculum, Paracosmocerca spinocerca and Paracosmocerca indica have been synonymised with C. ornata. Original descriptions of these species are inadequate and/or erroneous. Present paper deals with a detailed description of C. ornata, using both light microscopy and Scanning electron microscopy, recovered from a new anuran host, Hoplobatrachus crassus in West Bengal, India. The Birbhum district, West Bengal is recorded as a new geographical locality for C. ornata.


Cosmocerca ornata Nematoda Hoplobatrachus crassus Euphlyctis cyanophlyctis India 



Thankful acknowledgement is due to the University of Burdwan for giving us laboratory facilities. Thanks are due to the authorities of the University Science Instrumentation Centre and Central Instrumentation Facilities (USIC & CIF), University of Burdwan for affording Scanning Electron Microscope in studying surface-topography of nematodes. The authors are thankful to Charles R. Bursey, Professor of Biology, Department of Biology, Pennsylvania State University and Cynthya E. González, Centro de Ecologia Aplicada del Litoral (CECOAL), Corrientes, Argentina for providing us updated research articles. The authors thankfully acknowledge the Amphibia Section, Herpetology Division, Zoological Survey of India, Kolkata for identification of hosts.

Author contribution

Dr. S. K. Sou and K. K. Sow has carried out the research work under the guidance of Prof. A. P. Nandi.

Compliance with ethical standards

Conflict of interest

Authors declared that there is no conflict of interest.

Ethical standard

Though there is no ethics committee in our Institutions, frogs has been sacrificed for the present study following guidelines of The Committee for the Purpose of Control and Supervision of Experiments on Animals (CPCSEA) formed by the Act of the Indian Parliament.


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Copyright information

© Zoological Society, Kolkata, India 2018

Authors and Affiliations

  • Sujan Kumar Sou
    • 1
    Email author
  • Kanchan Kumar Sow
    • 2
  • Anadi Prasad Nandi
    • 2
  1. 1.Department of ZoologyKulti CollegeKulti, Paschim BardhamanIndia
  2. 2.Parasitology Research Laboratory, Department of ZoologyBurdwan UniversityPurba BardhamanIndia

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