Hostname: page-component-7479d7b7d-fwgfc Total loading time: 0 Render date: 2024-07-09T23:15:34.338Z Has data issue: false hasContentIssue false

Teraplectanum n. g. (Monogenea: Diplectanidae) from the banded grunter fish, Terapon theraps Cuvier (Perciformes: Terapontidae), off Peninsular Malaysia

Published online by Cambridge University Press:  03 April 2014

L.H.S. Lim*
Affiliation:
Institute of Biological Sciences, Faculty of Science, University of Malaya, 50603Kuala Lumpur, Malaysia
*
*Fax: +603 7967 4178/4173 E-mail: susan@um.edu.my

Abstract

A new genus of the Monogenea, Teraplectanum n. g., is proposed for two new species of diplectanids found on the gills of Terapon theraps Cuvier collected off Carey Island, Peninsular Malaysia. The genus is based on a unique arrangement of the male reproductive system. In the new species spermatozoa stored in the seminal vesicle and secretions stored in the prostatic reservoir are transferred into, and mixed to form semen within, a special sclerotized auxiliary piece (SAP), and not within the copulatory tube as occurs in the majority of monogeneans. Teraplectanum species also possess a unique sclerotized vaginal loop through which the vaginal tube passes en route from the vaginal pore to the seminal receptacle. The two new species are Teraplectanum crassitubus n. sp. (type species) and T. angustitubus n. sp. They differ from each other mainly in the morphology of their copulatory tube: in T. crassitubus, the proximal region of this tube is thicker compared to the slender proximal region in T. angustitubus, although in both cases the tube tapers and twists distally. Of the known diplectanid species, only Diplectanum undulicirrosum Zhang et al., 2000 (currently considered incertae sedis) possesses such sclerotized hard parts, which suggests the same type of arrangement of the male reproductive system. Consequently, D. undulicirrosum is re-assigned to this new genus as Teraplectanum undulicirrosum (Zhang et al., 2000) n. comb. The copulatory tube of T. undulicirrosum is similar to the slender, undulating copulatory tube of T. angustitubus but does not taper distally as in the latter species.

Type
Research Papers
Copyright
Copyright © Cambridge University Press 2014 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Domingues, M.V. & Boeger, W.A. (2008) Phylogeny and revision of Diplectanidae Monticelli, 1903 (Platyhelminthes: Monogenoidea). Zootaxa 1698, 140.Google Scholar
Froese, R. & Pauly, D. (Eds) (2013) FishBase. World Wide Web electronic publication. Available at www.fishbase.org , version (accessed April 2013).Google Scholar
Gupta, N.K. & Khanna, M. (1974) On some of the monogenetic trematodes of marine fishes from Port-Blair (Andaman and Nicobar Islands, India). Part 1. Revista Iberica Parasitologia 34, 257272.Google Scholar
Johnston, T.H. & Tiegs, O.W. (1922) New gyrodactylids from Australian fishes, together with a reclassification of the superfamily Gyrodactyloidea. Proceedings of the Linnean Society of New South Wales 47, 83131.Google Scholar
Kritsky, D.C., Jiménez-Ruiz, F.A. & Sey, O. (2000) Diplectanids (Monogenoidea: Dactylogyridae) from the gills of marine fishes of the Persian Gulf of Kuwait. Comparative Parasitology 67, 145164.Google Scholar
Lim, L.H.S. (1991) Three new species of Bychowskyella from Malaysia. Systematic Parasitology 19, 3341.Google Scholar
Lim, L.H.S. (2006) Diplectanids (Monogenea) on the archerfish Toxotes jaculatrix (Pallas) (Toxotidae) off Peninsular Malaysia. Systematic Parasitology 64, 1325.Google Scholar
Lim, L.H.S. & Gibson, D.I. (2010) Species of Neohaliotrema Yamaguti, 1965 (Monogenea: Ancyrocephalidae) from the pomacentrid fish Abudefduf vaigensis (Quoy & Gaimard) off Pulau Langkawi, Malaysia, with a revised generic diagnosis and key. Systematic Parasitology 77, 107129.CrossRefGoogle Scholar
Mohsin, A.K.M. & Ambak, M.A. (1996) Marine fishes and fisheries of Malaysia and neighbouring countries. 744 pp. Serdang, Universiti Pertanian Malaysia Press.Google Scholar
Murray, F.V. (1931) Gill trematodes from some Australian fishes. Parasitology 23, 492506.Google Scholar
Price, E.W. (1937) North American monogenetic trematodes. I. The superfamily Gyrodactyloidea. Journal of the Washington Academy of Science 27, 114130.Google Scholar
Tripathi, Y.R. (1957) Studies on the parasites of Indian fishes II. Monogenea. Family Dactylogyridae. Indian Journal of Helminthology 7, 522.Google Scholar
Yamaguti, S. (1934) Studies on the helminth fauna of Japan. Part 2. Trematodes of fishes, 1. Japanese Journal of Zoology 5, 249541.Google Scholar
Yamaguti, S. (1963) Monogenea and Aspidocotylea. Systema Helminthum. Volume IV. 699 pp. New York, Interscience Publishers.Google Scholar
Zhang, J.-Y., Liu, L., Ding, X.-J. & Chen, Z.-B. (2000) Monogenea of Chinese Marine Fishes. XI. Two new species of the genus Diplectanum Diesing, 1858. Acta Hydrobiologica Sinica 24, 236240.Google Scholar