Abstract
The life-cycle of Orthetrotrema monostomum, a progenetic trematode occurring in the haemocoel of dragonfly naiads is described. The snail Thiara tuberculata acts as the intermediate host. The cercaria is xiphidiocercous, monostomate and belongs to the “Microcotylous” group. The course of development of the cercaria into a mature adult fluke is followed in the haemocoel of dragon-fly naiads which had been exposed to cercariae. On the basis of intraspecific variations noted in the adult flukes obtained experimentally from dragon-fly naiads, O. longicaeca Hanumantha Rao & Swamy, 1975 is synonymised with O. monostomum. Evidence is provided for the inclusion of the genus Orthetrotrema in the family Eumegacetidae. The diagnosis of the family Eumegacetidae is amended.
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References
CableR.M. (1956) Marine cercariae of Puerto Rico. Scientific Survey of Porto Rico and Virgin Islands, 16, 491–577.
HallJ.E. (1960) Some lecithodendriid metacercariae from India and Michigan. Journal of Parasitology, 46, 309–315.
Hanumantha RaoK. & SwamyC.S. (1975) Orthetrotrema longicaeca n.sp. (Trematoda: Digena) from dragon-fly naiads. Rivista di Parassitologia, 36, 29–32.
Lühe, M. (1909). Parasitischer Plattwurmer 1. Trematodes. Süsswasser Fauna Deutschlands, 17, 217 pp.
MacyR.W. & BaschP.F. (1972) Orthetrotrema monostomum gen. et sp.n.: a progenetic trematode (Dicrocoeliidae) from dragonflies in Malaysia. Journal of Parasitology, 58, 515–518.
MuraleedharanK. & PandeB.P. (1967) A damsel-fly as the second intermediate host of a pleurogenetine trematode. Current Science, 36, 639–641.
NasirP. (1972) Some aspects of xiphidiocercarial classification. Zoologische Anzeiger, 189, 382–392.
Nath, D. & Pande, B.P. (197) A mature halipegid fluke from a libellulid dragonfly. Indian Journal of Helminthology, 22, 101–106.
SewellR.B.S. (1922) Cercariae indicae. Indian Journal of Medical Research, 10, 1–370.
SwarnakumariV.G.M. & MadhaviR. (1994) The life-cycle of Eugemacetes artamii Mehra, 1935 (Trematoda, Eumegacetidae). Acta Parasitologica, 39, 9–12.
YamagutiS. (1971) Synopsis of digenetic trematodes of vertebrates. Tokyo: Keigaku Publishing Co., Vol. 1, 1,074 pp.
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Madhavi, R., Swarnakumari, V.G.M. The morphology, life-cycle and systematic position of Orthetrotrema monostomum Macy & Basch, 1972, a progenetic trematode. Syst Parasitol 32, 225–232 (1995). https://doi.org/10.1007/BF00008831
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DOI: https://doi.org/10.1007/BF00008831