Synsphyronus ejuncidus is a species of pseudoscorpion in the Garypidae family. It is endemic to Australia. It was described in 1987 by Australian arachnologist Mark Harvey. The specific epithet ejuncidus (Latin: 'rushlike' or 'slender') refers to the pseudoscorpionsâ thin pedipalpal appendages.
The body length of females is 3.4âÂÂ4.0 mm; that of males is 2.9âÂÂ3.0 mm. Colouration is light yellowish-brown.
The species occurs in the Northern Territory and Western Australia. The type locality is 8 km south of Knob Peak on Carlton Hill Station in the east Kimberley region. It has also been recorded from Wigley Waterhole on the Todd River, 8 km north of Alice Springs.
The pseudoscorpions are terrestrial predators.