Skip to content
BY-NC-ND 3.0 license Open Access Published by De Gruyter August 4, 2011

Amendment of Pseudoleptobothrium Young, 1967 (Monogenea, Microbothriidae) with the description of Pseudoleptobothrium christisoni sp. nov. from the dermal denticles of Rhinobatos annulatus (Rhinobatidae) off the southern tip of Africa

David Vaughan EMAIL logo and Leslie Chisholm
From the journal Acta Parasitologica


Pseudoleptobothrium christisoni sp. nov. is described from the dermal denticles of the dorsal skin surface of a single female Rhinobatos annulatus collected off Cape Agulhas, South Africa and destined for public exhibition at the Two Oceans Aquarium in Cape Town. This new species differs from the only other species in the genus, P. aptychotremae Young, 1967, primarily by the morphology of the male copulatory tract. The distal portion of the male copulatory tract is wide and bears muscular papillae internally and externally. In addition, the area of ventral tegument near the vaginal pore has several parallel ridges which appear to serve as the initial attachment site for a bipartite spermatophore. The formation of the spermatophore in P. christisoni is discussed. The generic diagnosis of Pseudoleptobothrium is revised to accommodate P. christisoni and a partial redescription of P. aptychotremae is provided to include characters originally not described or described incorrectly.

[1] Bullard S.A., Dippenaar S.M., Hoffmayer E.R., Benz G.W. 2004. New locality records for Dermophthirius carcharhini (Monogenea: Microbothriidae) and Dermophthirius maccallumi and a list of hosts and localities for species of Dermophthirius. Comparative Parasitology, 71, 78–80. DOI:10.1654/4093. in Google Scholar

[2] Bullard S.A., Frasca S. Jr., Benz G.W. 2000. Skin lesions caused by Dermophthirius penneri (Monogenea: Microbothriidae) on wild-caught blacktip sharks (Carcharhinus limbatus). Journal of Parasitology, 86, 618–622. DOI: 10.1645/0022-3395(2000)086[0618:SLCBDP]2.0.CO;2.[0618:SLCBDP]2.0.CO;2Search in Google Scholar

[3] Cheung P.J., Nigrelli R.F. 1983. Dermophthirioides pristidis n. gen., n. sp. (Microbothriidae) from the skin and Neoheterocotyle ruggierii n. sp. (Monocotylidae) from the gills of the smalltooth sawfish, Pristis pectinata. Transactions of the American Microscopy Society, 102, 366–370. DOI: 10.2307/3225849. in Google Scholar

[4] Cheung P.J., Nigrelli R.F., Ruggieri G.D., Cilia A. 1982. Treatment of skin lesions in captive lemon sharks, Negaprion brevirostris (Poey), caused by monogeneans (Dermophthirius sp.). Journal of Fish Diseases, 5, 167–170. DOI: 10.1111/j.1365-2761.1985.tb01212.x. in Google Scholar

[5] Cheung P.J., Nigrelli R.F. Ruggieri G.D., Crow G.L. 1988. A new microbothriid (monogenean) causing skin lesions on the Pacific blacktip reef shark, Carcharhinus melanopterus (Quoy and Gaimard). Journal of Aquatic Aquaculture Science, 5, 21–55. Search in Google Scholar

[6] Cheung P.J., Ruggieri G.D. 1983. Dermophthirius nigrelli n. sp. (Monogenea: Microbothriidae), an ectoparasite from the skin of the lemon shark, Negaprion brevirostris. Transactions of the American Microscopy Society, 102, 129–134. in Google Scholar

[7] Chisholm L.A., Wheeler T.A., Beverley-Burton M. 1995. A phylogenetic analysis and revised classification of the Monocotylidae Taschenberg, 1879 (Monogenea). Systematic Parasitology, 32, 159–191. DOI: 10.1007/BF00008827. in Google Scholar

[8] Compagno L.J.V. 2003. Rhinobatidae. In: (Eds. M.M. Smith and P.C. Heemstra) Smiths’ Sea Fishes. Third Edition. Struik Publishers, South Africa, 128–131. Search in Google Scholar

[9] Glennon V., Chisholm L.A., Whittington I.D. 2006. Pseudoleptobothrium aptychotremae Young, 1967 (Monogenea, Microbothriidae) redescribed from a new host, Trygonorrhina fasciata (Rhinobatidae) in South Australia with a description of the larva and post-larval development. Acta Parasitologica, 51, 40–46. DOI: 10.2478/s11686-006-0005-9. in Google Scholar

[10] Grimes D.J., Gruber J.S.H., May E.B. 1985. Experimental infection of lemon sharks, Negaprion brevirostris (Poey), with Vibrio species. Journal of Fish Diseases, 8, 173–180. DOI: 10.1111/j.1365-2761.1985.tb01212.x. in Google Scholar

[11] Kearn G.C., Whittington I.D. 2005. Neoentobdella gen. nov. for species of Entobdella Blainville in Lamarck, 1818 (Monogenea, Capsalidae, Entobdellinae) from stingray hosts, with descriptions of two new species. Acta Parasitologica, 50, 32–48. Search in Google Scholar

[12] Kearn G.C., Whittington I.D., Evans-Gowing R. 2010. A new genus and new species of microbothriid monogenean (Platyhelminthes) with a functionally enigmatic reproductive system, parasitic on the skin and mouth lining of the largetooth sawfish, Pristis microdon, in Australia. Acta Parasitologica, 55, 115–122. DOI: 10.2478/s11686-010-0019-1. in Google Scholar

[13] Last P.R., Stevens J.D. 2009. Sharks and rays of Australia. Second Edition. CSIRO Division of Fisheries, Australia, 644 pp. Search in Google Scholar

[14] Poynton S.L., Campbell T.W., Palm H.W. 1997. Skin lesions in captive lemon sharks Negaprion brevirostris (Carcharhinidae) associated with the monogenean Neodermophthirius harkemai Price, 1963 (Microbothriidae). Diseases of Aquatic Organisms, 31, 29–33. DOI: 10.3354/dao031029. in Google Scholar

[15] Price E.W. 1936. North American monogenetic trematodes. George Washington University Bulletin (Summaries of Doctoral Theses 1934–36): 10–13. Search in Google Scholar

[16] Rand T.G., Wiles M., Odense P. 1986. Attachment of Dermophthirius carcharhini (Monogenea: Microbothriidae) to the Galapagos shark Carcharhinus galapagensis. Transactions of the American Microscopy Society, 105, 158–169. DOI: 10.2307/3226388. in Google Scholar

[17] Vaughan D.B., Chisholm L.A. 2010. A new species of Neoheterocotyle Hargis, 1955 (Monogenea: Monocotylidae) from the gills of Rhinobatos annulatus Müller & Henle (Rhinobatidae) off the southern tip of Africa. Systematic Parasitology, 77, 205–213. DOI: 10.1007/s11230-010-9268-5. in Google Scholar

[18] Vaughan D., Chisholm L., Christison K. 2008. Overview of South African Dendromonocotyle (Monogenea: Monocotylidae), with descriptions of 2 new species from stingrays (Dasyatidae) kept in public aquaria. Zootaxa, 1826, 26–44. DOI:10.1016/S0020-7519(96)00113-0. 10.1016/S0020-7519(96)00113-0Search in Google Scholar

[19] Whittington I.D., Kearn G.C. 2009. Two new species of entobdelline skin parasites (Monogenea, Capsalidae) from the blotched fantail ray, Taeniura meyeni, in the Pacific Ocean, with comments on spermatophores and the male copulatory apparatus. Acta Parasitologica, 54, 12–21. DOI: 10.2478/s11686-009-0013-7. in Google Scholar

[20] Yamaguti S. 1963. Systema Helminthum. IV. Monogenea and Aspidocotylea. John Wiley and Sons, New York, 699 pp. Search in Google Scholar

[21] Young P.C. 1967. New Monogenoidea from Australian brackish water and reef fishes. Journal of Parasitology, 53, 1008–1015. in Google Scholar

Published Online: 2011-8-4
Published in Print: 2011-9-1

© 2011 W. Stefański Institute of Parasitology, PAS

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Downloaded on 2.12.2022 from
Scroll Up Arrow