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ABSTRACT
Two new species of the water mite family Pontarachnidae are described from Queensland, Australia: Pontarachna curvipalpis and Litarachna haleioides. Pontarachna curvipalpis can be distinguished from other members of the genus by its stocky leg segments, long apodemes of the fourth coxae, strongly bowed pre- and postgenital sclerite and wheel-like acetabula without radiating spokes. Litarachna haleoides is characterized by strongly bowed but not touching genital sclerites, relatively short apodemes of the fourth coxae, a slender palp and P2 with a ventral projection. A short discussion is provided on the occurrence of water mites on the Great Barrier Reef.
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Acknowledgements
The Great Barrier Reef Marine Park Authority gave permission to collect water mites on Orpheus and Heron Island. Truus van der Pal (Alkmaar) assisted me on this collecting trip.
Disclosure statement
No potential conflict of interest was reported by the author.