[1] The specific name hookeri is in honor of English botanist Joseph Dalton Hooker, who collected this snail during the Antarctic expedition led by James Clark Ross.
testá mediocriter umbilicatá, orbuculari-depressá, sordidè olivaceá, subirrigulariter rugoso-striatá; spirá subplanulatá, suturis impressis; anfractibus quatuor, convexis; aperturá lunato-circulari, labro simplici.
Shell moderately umbilicated, orbicularly depressed, dull olive, rather irregularly roughly striated; spire rather flat, with sutures impressed; whorls four, convex; aperture lunar-circular, lip simple.
A small depressed species collected by Dr. Hooker in the Antarctic Expedition of the Erebus and Terror, peculiarly characterized by the sombre olive-horny coating of Paludina and Ampullaria.Henry Augustus Pilsbry classified this species as Helix hookeri in 1887[3] or within the genus Amphidoxa as Amphidoxa hookeri within the family Endodontidae in 1894.
[2] Their study was the first to demonstrate that gastropod shell micro structure responds to environmental heterogeneity, leading to the formation of ecophenotypes.
[2] This snail live in relatively simple ecosystems, that is caused by harsh environmental conditions on subantarctic islands.
[8] The soil is known to be a nutrient resource for Notodiscus hookeri, since this species has been found to significantly increase calcium release in solutions derived from plant litter.
[2] Notodiscus hookeri exclusively feeds on lichens such as Orceolina kerguelensis, Usnea taylorii and Pseudocyphellaria crocata.