Athanas sydneyensis is a species of small alpheid shrimp.
Athanas sydneyensis belongs to the genus Athanas of the snapping shrimp family Alpheidae. It was first described in 2007 by Arthur Anker and Shane Ahyong.[1] [2]
It has been found only midstream of the Hawkesbury River in the muddy-sand substrate at a depth of 10 metres.[3]