See text Crinia is a genus of frog, native to Australia, and part of the family Myobatrachidae.

It consists of small frogs, which are distributed throughout most of Australia, excluding the central arid regions.

They have unwebbed toes and fingers, most of the species in these genus are polymorphic - meaning that several variations of colour and skin patterning exist in a single population and all species lay their eggs in small clumps in water.

During the 1950s, 1960s and 1970s a lot of taxonomic work was done on this genus, frogs that were originally thought to be common eastern froglets (Crinia signifera) were described as other species of Crinia by mating call analysis and hybridization experiments.

The moss froglet, (Crinia nimbus) is very different physically and in its tadpole development.