Document ID: chunk:federal_register_of_legislation:F2025L00287:reg:3:p23
Version: federal_register_of_legislation:F2025L00287
Segment Type: reg
Provision Reference: reg 3 (pt 23/276)
Character Range: 75905–79249

rediscovery of one species, Allenoconcha quintalia (previously known as Nancibella quintalia), which was last collected in 1889 and was listed as Extinct by the IUCN (Hyman & Köhler 2020). There is a need to reassess the listings of other endemic snail species and evaluate whether additional species should be listed under the EPBC Act.
Of the five EPBC listed threatened molluscs, only three are known to persist. Campbell's keeled glass‑snail occurs within the Mt Pitt section of the Norfolk Island National Park, Gray's glass‑snail occurs on Phillip Island, and Suter's striped glass-snail is currently only found within Hundred Acres Reserve (Map 3). More detailed individual species information is included in Part 6.
Taxonomy of the species previously classified in the genera Advena, Mathewsoconcha and Quintalia was revised in 2023, bringing all five Critically Endangered species into the single genus, Advena (Hyman et al. 2023).
Table 6 EPBC listed threatened molluscs of the Norfolk Island Group
Species a                                    Common name                    EPBC Act status        Known status      Relevant Commonwealth plans
Advena campbellii                            Campbell's keeled glass-snail  Critically Endangered  Extant            Conservation Advice (DEWHA 2008a), Threat abatement plan to reduce the impacts of exotic rodents on biodiversity on Australian offshore islands of less than 100,000 hectares (Commonwealth of Australia 2009)
Mathewsoconcha grayi (Advena grayi)          Gray's glass-snail             Critically Endangered  Extant            Conservation Advice (DEWHA 2008b), Threat abatement plan to reduce the impacts of exotic rodents on biodiversity on Australian offshore islands of less than 100,000 hectares (Commonwealth of Australia 2009)
Mathewsoconcha phillipii (Advena phillipii)  Phillip Island glass-snail     Critically Endangered  Presumed extinct  Conservation Advice (DEWHA 2008c), Threat abatement plan to reduce the impacts of exotic rodents on biodiversity on Australian offshore islands of less than 100,000 hectares (Commonwealth of Australia 2009)
Mathewsoconcha suteri (Advena suteri)        Suter's striped glass-snail    Critically Endangered  Extant            Conservation Advice (DEWHA 2008d), Threat abatement plan to reduce the impacts of exotic rodents on biodiversity on Australian offshore islands of less than 100,000 hectares (Commonwealth of Australia 2009)
Quintalia stoddartii (Advena stoddartii)     Stoddart's glass-snail         Critically Endangered  Presumed extinct  Conservation Advice (DEWHA 2008e), Threat abatement plan to reduce the impacts of exotic rodents on biodiversity on Australian offshore islands of less than 100,000 hectares (Commonwealth of Australia 2009)

a Hyman et al. (2023) have completed a revised taxonomy of the Norfolk Island microcystid snails and concluded that the three genera, Advena, Mathewsoconcha and Quintalia, should be combined into the single genus Advena. As these species have been listed under the EPBC Act under previous names, the listed name appears first, with the revised names in brackets.

Orthoptera (grasshoppers, crickets and katydids)
A total of 20 orthopterans are known from the Norfolk Island Group, 11 of which are endemic. The cricket Nesitathra philipensis is believed to be endemic to