It is endemic to Papua New Guinea where it occurs at three localities around Popondetta in the east of the country.

[1] This species inhabits clear, fast flowing freshwater streams, although it has been reported from brackish water.

[3] This species was described in 1981 as Popondetta connieae by Gerald R. Allen from a typelocality of Auga Creek, about 5 kilometres (3.1 miles) south of Popondetta[4] where Allen collected the 200 types along with Brian Parkinson.

[3] Allen gave it the specific name connieae to honour his wife, Connie, who normally prepared Allen's manuscripts for publication.

[5] This species is sought-after in the aquarium trade and is available in the European and Australian markets.