A new species of snail has been discovered in the highlands of southern Queensland.

A dozen scientists spent 10 days in October 2014 scouring the Carnarvon Station Reserve, about 200 kilometres south of Emerald, for spiders, ants, bees, flies, plants, reptiles and amphibians.

Ellen Couchman found the snail, which was only officially confirmed as a new species this week.

It was given the scientific name Pallidex simonhudsoni.

Five other types of snail found during the trip are also expected to be confirmed as new species.

Queensland Museum Honorary Research Fellow and snail expert Dr John Stanisic said like many of Australia's 1,500 species of land snails, the Pallidex simonhudsoni had a very localised distribution.

"The discovery and documentation adds another species to the short but ever-increasing list of Australia's unique but largely unknown invertebrate fauna," Dr Stanisic said.

"It underscores how little we know and appreciate about our spineless friends."

The snail was found as part of the Bush Blitz program, jointly funded by the Commonwealth, BHP Billiton and Earthwatch.

Since the national program was established in 2009, 600 new and undescribed species had been uncovered during a number of search projects.

Manager of Bush Blitz Jo Harding said the national discovery program had helped uncover many new species.

"Approximately 75 per cent of Australia's diversity is still undiscovered, so that's a lot of things that we still don't know," Ms Harding said.

"It's not that nobody's ever walked over them before, and they have to be remote, it's that nobody's actually taken the time to look.

"We lack the expertise in Australia in taxonomists.

"It's actually a bit of dying breed."

The next Queensland survey will be conducted at Cape York in July.