Systematic Parasitology

, Volume 30, Issue 1, pp 11–18 | Cite as

Melogonimus rhodanometra n. g., n. sp. (Digenea: Ptychogonimidae) from the elasmobranch Rhina ancylostoma Bloch & Schneider (Rhinobatidae) from the southeastern coastal waters of Queensland, Australia

  • Rodney A. Bray
  • Annette Brockerhoff
  • Thomas H. Cribb


The new genus Melogonimus is defined and adults of its type-species, M. rhodanometra n. sp., are described from Rhina ancylostoma from Moreton Bay, Queensland. This is the first record of a digenean from this host species. It is argued that metacercariae from the portunid crab Portunus pelagicus from Hervey Bay, off Queensland, belong to M. rhodanometra. The definition of the family Ptychogonimidae is amended, and a key to its two genera is given. Melogonimus is characterised by a smooth genital atrium wall, a large sinus-organ, a large muscular seminal vesicle, a weakly developed pars prostatica, a pre-testicular uterus and confluent post-testicular vitelline fields.


Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.


  1. Brooks D.R. & McLennan D.A. (1993) Parascript. Parasites and the language of evolution. Washington and London: Smithsonian Institution Press, 429 pp.Google Scholar
  2. Brooks D.R., O'Grady R.T. & Glen D.R. (1985) Phylogenetic analysis of the Digenea (Platyhelminthes: Cercomeria) with comments on their adaptive radiation. Canadian Journal of Zoology, 63, 411–443.Google Scholar
  3. Dollfus R.P. (1937) Parasitologia Mauritania helmintha. (III). Trématodes de sélaciens et de chéloniens. Bulletin du Comité d'Etudes Historiques et Scientifiques de l'Afrique Occidentale Française, 19, 397–519.Google Scholar
  4. Gibson D.I. (1987) Questions in digenean systematics and evolution. Parasitology, 95, 429–460.Google Scholar
  5. Gibson D.I. & Bray R.A. (1977) The Azygiidae, Hirudinellidae, Ptychogonimidae, Sclerodistomidae and Syncoeliidae of fishes from the north-east Atlantic. Bulletin of the British Museum (Natural History), (Zoology Series), 32, 167–245.Google Scholar
  6. Gibson D.I. & Bray R.A. (1979) The Hemiuroidea: terminology, systematics and evolution. Bulletin of the British Museum (Natural History), (Zoology Series), 36, 35–146.Google Scholar
  7. Grant E. (1987) Fishes of Australia. Scarborough: E.M. Grant Pty Ltd, 480 pp.Google Scholar
  8. Palombi A. (1942) Il ciclo biologico di Ptychogonimus megastoma (Rud.). Osservazioni sulla morfologia e fisiologia delle forme larvali e considerazioni filogenetiche. Rivista di Parassitologia, 6, 117–173.Google Scholar
  9. Vigueras I.P. (1956) Contribución al conocimiento de la fauna helmintológica cubana. Memorias de la Sociedad Cubana de Historia Natural "Felipe Poey", 23, 1–36.Google Scholar

Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Rodney A. Bray
    • 1
  • Annette Brockerhoff
    • 2
  • Thomas H. Cribb
    • 2
  1. 1.Department of ZoologyThe Natural History MuseumLondonUK
  2. 2.Department of ParasitologyUniversity of QueenslandBrisbaneAustralia

Personalised recommendations