Journal of
Cell and Animal Biology

  • Abbreviation: J. Cell Anim. Biol.
  • Language: English
  • ISSN: 1996-0867
  • DOI: 10.5897/JCAB
  • Start Year: 2007
  • Published Articles: 261

Full Length Research Paper

Anatomical characters for easy identification between Biomphalaria pfeifferi, Helisoma duryi and Indoplanorbis exustus during field surveys

Ibikounlé M1*, Massougbodji A2, Sakiti N. G1, Pointier J. P3 and Moné H3
1Département de Zoologie et Génétique, Faculté des Sciences et Techniques, Université d’Abomey-Calavi, BP 526, Cotonou, Bénin. 2Laboratoire de Parasitologie-Mycologie, Faculté des Sciences de la Santé, Université d’Abomey-Calavi, 01BP188, Cotonou, Bénin. 3Laboratoire de Biologie et d’Écologie Tropicale et Méditerranéenne, UMR 5244 CNRS-EPHE-UPVD, Université de Perpignan, 52 Avenue Paul Alduy, 66860 Perpignan Cedex, France.
Email: [email protected]

  •  Accepted: 24 April 2008
  •  Published: 31 May 2008


Accurate identification of the freshwater snails that are responsible for schistosome transmission is needed in order to settle the best control strategy. We propose herein a description of the anatomical characters that allow distinguishing between the three planorbids snails: Biomphalaria pfeifferi, the main intermediate host of Schistosoma mansoni in Africa, Helisoma duryi andIndoplanorbis exustus. B. pfeifferi has a few prostatic diverticulae arranged in a row; the penis sheath is narrower and a little smaller than the preputium. H. duryihas a few prostatic diverticulae branched repeatedly giving the organ a cauliflower-like appearance; the penis sheath is pear-shaped and the preputium shows a characteristic lateral swelling produced by a preputial organ. In I. exustus, the prostatic diverticulae are arranged in a compact fan-shaped organ. The penial complex lacks the conspicuous preputial organ of H. duryi; it is of the bulinid type with a penis sheath four times longer than the preputium.


Key words: Biomphalaria pfeifferi, Helisoma duryi, Indoplanorbis exustus, morphology, reproductive system.