The Gastrocoptinae of Australia (Gastropoda : Pulmonata : Pupilloidae): Systematics, distribution and origin

Abstract

The Gastrocoptinae of Australia are revised on the basis of over 13 000 specimens from nearly 600 localities. Of 23 nominal species 12 are synonymised; Gastrocopta stupefaciens, sp. nov., and G. solemorum, sp. nov., are described, making a total of 13 species. A key to the species is provided. Pumilicopta Solem, 1989 is reduced to subgeneric rank. Eleven of 13 species are endemic to Australia, one to Australia and New Guinea, and one is recorded from Australia and some Pacific islands. The gastrocoptines inhabit only coastal areas and the 'Red Centre'; only three species are exclusively southern. Relationships with extralimital taxa, based on derived characters of apertural barriers and shell sculpture, indicate that the gastrocoptines colonised Australia at least four times from Asia and adjacent islands. The first immigration may have taken place in the mid-Miocene.

Utilization of the invasive plant Impatiens parviflora DC. by the snail Columella edentula Draparnaud in oak-hornbeam forests

“…Its distribution range includes most of Europe, except its northernmost (Island, Finland) and southernmost fringes (to the Alps), the Caucasus, Central Asia (Loek 1964;Shileyko 1984after Pokryszko 1990) and some parts of North America (Pokryszko 1990). In Poland it is common in a wide range of habitats: woodlands, wetlands, and meadows.…”

“…To date it has been recorded feeding on Mercurialis perennis, Asarum europaeum, Glechoma hederacea, Circaea lutetiana, Cirsium oleraceum, Petasites sp. and umbellifers (Pokryszko 1990;Pila -te 2001).…”

New records of non-marine, non-camaenid gastropods (Mollusca: Gastropoda) from islands off the Kimberley coast, Western Australia

“…This species occurs in coastal areas of northern and eastern Australia (north-eastern Western Australia, Northern Territory, Queensland, New South Wales) (Pokryszko 1996). It has been extralimitally recorded from New Caledonia, the Philippines, Cook Islands, Society Islands, Marianas, Hawaii, Tuamotu Islands, Tonga, Vanuatu (= New Hebrides), Solomon Islands, Caroline Islands and Fiji.…”

“…However, G. simplex was later synonymised with G. pediculus by Pokryszko (1996). The Australian representatives of G. pediculus are regarded as native.…”

Gastrocopta iheringi (Suter, 1900) (Gastropoda, Vertiginidae): redescrição do material-tipo

“…As medidas (mm) obtidas ao estereomicroscópio (ocular micrometrada), assim como os índices seguem Pokryszko (1996): comprimento ou altura da concha (H), largura da concha (L), comprimento ou altura da abertura (h), largura da abertura (l), altura da volta do corpo (vc); índices da proporção entre altura/largura da abertura da concha (H/L), altura volta do corpo/ altura da concha (vc/H). A nomenclatura para os dentes ou lâminas presentes na abertura da concha segue Pilsbry (1916Pilsbry ( -1918: as localizadas sobre a parede parietal e a margem columelar − lamelas; as situadas sobre a margem basal e a parede interna do lábio externo − pregas ou dobras.…”