Conservation Status codes, as derived from Thomas and McDonald 1989:
- Species known only from the type collection.
- Species with a very restricted distribution in Australia and with a maximum geographic distribution of less than 100 km. This category includes some species which occur outside Australia.
- Species with a range greater than 100km in Australia but occurring in small populations which are mainly restricted to highly specific habitats.
“X” Species presumed extinct. either not found in recent years despite thorough searching of have not been collected for at least 50 years and were known only from now ell-settled areas.
“E” Endangered species at serious risk of disappearing from the wild state within 10 to 20 years if present land use and other causal factors continue to operate. This includes species with populations possibly too small to survive even if present in proclaimed reserves.
“V” Vulnerable species not presently endangered but at risk over a longer period through continued depletion, or which largely occur on sites likely to experience changes in land use which would threaten the survival of the species in the wild.
“R” Species which are rare in Australia, but not currently considered endangered or vulnerable. Such species may be represented by a relatively large population in a relatively restricted area or by smaller populations spread over a wider range or some intermediate combination of distribution patterns.
“K” Poorly known species that are suspected, but not definitely known, to belong to any of the above categories. At present accurate field distribution information is inadequate.
“C” Species known to be represented within a national park or other proclaimed reserve. The species may or may not be considered adequately conserved within the reserve(s), as indicated by the conservation coding assigned to it.
“+” Species which have a distribution extending beyond the Australian continent.