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A new genus of Phyllobothriidae (Cestoda: Tetraphyllidea) in carcharhiniform sharks from Iran and Australia

Published online by Cambridge University Press:  20 April 2010

J.N. Caira ,
M. Malek  and
T. Ruhnke
J.N. Caira*
Affiliation:
Department of Ecology and Evolutionary Biology, The University of Connecticut, Storrs, CT06269-3043, USA
M. Malek
Affiliation:
Department of Animal Biology, School of Biology, College of Science, University of Tehran, Tehran, Iran
T. Ruhnke
Affiliation:
Department of Biology, West Virginia State University, Institute, WV25112, USA
*
*Fax: 860-486-6364 E-mail: janine.caira@uconn.edu
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Abstract

The collection of cestodes from the carcharhiniform shark Carcharhinus cf. dussumieri in the Persian Gulf off Iran resulted in the discovery of the new genus and species of tetraphyllidean tapeworm, Doliobothrium haselii n. gen. n. sp. Collections from the carcharhiniform shark Rhizoprionodon acutus in the Timor Sea off northern Australia resulted in material that is consistent with a species originally described as Pithophorus musculosus from this host species in India, but that appears to represent a second species in the new genus. This second species is redescribed and transferred to Doliobothrium n. gen. The two species differ from one another in total length, testis number and total number of proglottids, with the latter species generally being smaller in overall size than the former species. Histological sections and scanning electron microscopy confirm that this new genus differs from all other phyllobothriid genera in the possession of bothridia that both lack apical suckers and are tubular in form, bearing proximal and distal apertures. Despite differences in scolex morphology, the proglottids of the new genus are remarkably similar to those seen in Orectolobicestus, Paraorygmatobothrium and Ruhnkecestus, all of which also parasitize sharks. These four genera also share the presence of serrate gladiate spinitriches on their proximal bothridial surfaces. This is only the second report of a cestode from an elasmobranch from the Persian Gulf. Limited available data suggest that the fauna of this region resembles that of other regions of the Indo-Pacific. Furthermore, owing to the paucity of available information and specimens, it is recommended that Pithophorus and three of its remaining described species (i.e. P. pakistanensis, P. trygoni, P. yamagutii) be considered as a genus inquirendum and species inquirenda, respectively.

Type
Research Papers
Information
Journal of Helminthology , Volume 85 , Issue 1 , March 2011 , pp. 40 - 50
Copyright
Copyright © Cambridge University Press 2010

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References

Bush, A.O., Lafferty, K.D., Lotz, J.M. & Shostak, A.W. (1997) Parasitology meets ecology on its own terms: Margolis et al. revisited. Journal of Parasitology 83, 575–583.CrossRefGoogle Scholar
Caira, J.N. (1985) An emendation of the generic diagnosis of Phoreiobothrium Linton, 1889 (Tetraphyllidea: Onchobothriidae) with a detailed description of bothridia and hooks. Canadian Journal of Zoology 63, 1199–1206.Google Scholar
Caira, J.N. & Durkin, S.M. (2006) A new genus and species of Tetraphyllidean Cestode from the Spadenose Shark, Scoliodon laticaudus, in Malaysian Borneo. Comparative Parasitology 73, 42–48.CrossRefGoogle Scholar
Chervy, L. (2009) Unified terminology for cestode microtriches: a proposal from the participants of the International Workshops on Cestode Systematics. Folia Parasitologica 56, 199–230.Google Scholar
Compagno, L.J.V. (1984) FAO species catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 – Carcarhiniformes. FAO Fisheries Synopsis 125(4/2), 251–655.Google Scholar
Cutmore, S.C., Bennett, M.B. & Cribb, T.H. (2009) Paraorygmatobothrium taylori n. sp. (Tetraphyllidea: Phyllobothriidae) from the Australian weasel shark Hemigaleus australiensis White, Last & Compagno (Carcharhiniformes: Hemigaleidae). Systematic Parasitology 74, 49–58.CrossRefGoogle Scholar
Euzet, L. (1994) Order Tetraphyllidea Carus, 1863. pp. 149–194in Khalil, L.F., Jones, A. & Bray, R.A. (Eds) Keys to the cestode parasites of vertebrates. Hertfordshire, UK, CAB International.Google Scholar
Healy, C.J., Caira, J.N., Jensen, K., Webster, B.L. & Littlewood, T.J. (2009) Proposal for a new tapeworm order, Rhinebothriidea. International Journal for Parasitology 39, 497–511.Google Scholar
Ivanov, V.A. (2006) Guidus n. gen. (Cestoda: Tetraphyllidea), with description of a new species and emendation of the generic diagnosis of Marsupiobothrium. Journal of Parasitology 92, 832–840.Google Scholar
Jadhav, D.H., Shinde, G.B. & Jadhav, B.V. (1992) On a new species of the genus Pithophorus (Cestoda: Phyllobothriidae) at Ratnagiri. Indian Journal of Helminthology 44, 149–151.Google Scholar
Linton, E. (1908) Helminth fauna of the Dry Tortugas. I. Cestodes. Publication No. 102, Papers from the Tortugas Laboratory of the Carnegie Institution of Washington 1, 157–190.Google Scholar
Malek, M., Caira, J.N. & Haseli, M. (2010) Two new species of Paraorygmatobothrium Ruhnke, 1994 (Cestoda: Tetraphyllidea) from the carcharhinid shark Carcharhinus cf. dussumieri (Müller & Henle) in the Persian Gulf. Systematic Parasiotology 76, 59–68.CrossRefGoogle Scholar
McKenzie, V.J. & Caira, J.N. (1998) Three new genera and species of tapeworms from the longnose sawhark, Pristiophorus cirratus, with comments on their modes of attachment to the spiral intestine. Journal of Parasitology 84, 409–421.CrossRefGoogle Scholar
Ruhnke, T.R. (1994) Paraorygmatobothrium barberi n.g. and n. sp. (Cestoda: Tetraphyllidea), with amended descriptions of two species transferred to the genus. Systematic Parasitology 28, 65–79.CrossRefGoogle Scholar
Ruhnke, T.R. (1996) Systematic resolution of Crossobothrium Linton, 1889, and taxonomic resolution of four species allocated to that genus. Journal of Parasitology 82, 793–800.Google Scholar
Ruhnke, T.R. & Carpenter, S.D. (2008) Two new species of Paraorygmatobothrium Ruhnke, 1994 (Tetraphyllidea: Phyllobothriidae) from the smooth-hound Mustelus mustelus (L.) and the gummy shark M. antarcticus Günther (Carcharhiniformes: Triakidae). Systematic Parasitology 71, 213–222.Google Scholar
Ruhnke, T.R. & Thompson, V.A. (2006) Two new species of Paraorygmatobothrium (Tetraphyllidea Phyllobothriidae) from the lemon sharks Negaprion brevistrostris and Negaprion acutidens (Carcharhiniformes: Carcharhinidae). Comparative Parasitology 73, 35–41.Google Scholar
Ruhnke, T.R., Caira, J.N. & Carpenter, S.D. (2006a) Orectolobicestus n. g. (Cestoda: Tetraphyllidea), with the description of five new species and the transfer of Phyllobothrium chiloscyllii to the new genus. Systematic Parasitology 65, 215–233.Google Scholar
Ruhnke, T.R., Healy, C.J. & Shapero, S. (2006b) Two new species of Paraorygmatobothrium (Cestoda: Tetraphyllidea) from weasel sharks (Carcharhiniformes: Hemigaleidae) of Australia and Borneo. Journal of Parasitology 92, 145–150.CrossRefGoogle ScholarPubMed
Shinde, G.B. (1978) On a new species of Pithophorus Southwell, 1925 (Cestoda: Phyllobothriidae Braun, 1900), from a marine fish at Ratnagiri. Rivista di Parassitologia 39, 85–88.Google Scholar
Southwell, T. (1912) A description of ten new species of cestode parasites from marine fishes of Ceylon, with notes on other cestodes from the same region. Ceylon Marine Biological Report 1, 259–278.Google Scholar
Southwell, T. (1925) A monograph on the Tetraphyllidea with notes on related cestodes. Memoirs of the Liverpool School of Tropical Medicine (New Series) 2, 1–368.Google Scholar
Subhapradha, C.K. (1955) Cestode parasites of fishes of Madras. Indian Journal of Helminthology 7, 41–132.Google Scholar
Yamaguti, S. (1952) Studies on the helminth fauna of Japan. Part 49. Cestodes of fishes, II. Acta Medicinae Okayama 8, 1–76.Google Scholar
Zaidi, D.A. & Khan, D. (1976) Cestodes of fishes from Pakistan. Biologia 22, 157–179.Google Scholar