Megalobulimus

(Original description) The jaw and radula of the following species differ so considerably from those of the typical Borus oblongus Müll. that I considered establishing a new subgenus, Megalobulimus, into which the giants of the Bulimidae would be classified. These could be characterized by the absence of strong transverse ribs on the jaw, a finely granular shell, reddish-brown upper whorls, a white band accompanying the suture, and a white aperture. ==Distribution==

These species are primarily found throughout South America—especially in the Andean Amazon and eastern Brazil. Some species are widespread across the continent, while others are locally restricted. ==Habitat==

Habitats include humid tropical forests, grasslands, and often forest litter and soil. Some species have an affinity for limestone soils and may be found in or near caves. ==Species==

Species within the genus Megalobulimus include: • Megalobulimus auritus (Sowerby, 1838) • Megalobulimus bertae Lange-de-Morretes, 1952 • Megalobulimus bronni (Pfeiffer, 1847) • Megalobulimus capillaceus (Pfeiffer, 1855) • Megalobulimus cardosoi (Lange-de-Morretes, 1952) • Megalobulimus carrikeri (Pilsbry, 1930) • Megalobulimus chionostoma (Mörch, 1852) • Megalobulimus conicus (Bequaert, 1948) • Megalobulimus crassus (Albers, 1850) • Megalobulimus diluvianus Fontenelle & Salvador, 2023 • Megalobulimus dryades Fontenelle, Simone & Cavallari, 2021 • Megalobulimus elongatus (Bequaert, 1948) • Megalobulimus elsae Falconeri, 1994 • Megalobulimus felipponei Ihering, 1928 • Megalobulimus florezi Borda & Ramírez, 2013 • Megalobulimus foreli (Bequaert, 1948) • Megalobulimus formicacorsii (Barattini & Ledón, 1949) • Megalobulimus fragilior (Ihering, 1901) • Megalobulimus garbeanus (Leme, 1964) • Megalobulimus garciamoreni (K. Miller, 1878) • Megalobulimus globosus (Martens, 1876) • Megalobulimus granulosus (Rang, 1831) • Megalobulimus gummatus (Hidalgo, 1870) • Megalobulimus haemastomus (Scopoli, 1786) • †Megalobulimus hauthali (Ihering, 1904) • Megalobulimus hector (Pfeiffer, 1857) • Megalobulimus helicoides Simone, 2018 • Megalobulimus huascari (Tschudi, 1852) • Megalobulimus inambarisensis Borda & Ramírez, 2016 • Megalobulimus indigens (Fulton, 1914) • Megalobulimus intercedens (E. von Martens, 1876) • Megalobulimus intertextus (Pilsbry, 1895) • Megalobulimus jaguarunensis Fontenelle, Cavallari & Simone, 2014 • Megalobulimus klappenbachi (Leme, 1964) • Megalobulimus lacunosus (d'Orbigny, 1835) • Megalobulimus leonardosi (Lange-de-Morretes, 1952) • Megalobulimus leucostoma (G. B. Sowerby I, 1835) • Megalobulimus lichtensteini Albers, 1854 • Megalobulimus lopesi Leme, 1989 • Megalobulimus martensianus (Pilsbry, 1902) • Megalobulimus mauricius Falconeri, 1995 • Megalobulimus maximus (Sowerby, 1825) • Megalobulimus mogianensis Simone & Leme, 1998 • Megalobulimus nodai Lange-de-Morretes, 1952 • Megalobulimus oblongus (Müller, 1774) • Megalobulimus oliveirai (Bequaert, 1948) • Megalobulimus oosomus (Pilsbry, 1895) • Megalobulimus ovatus (Müller, 1774) • Megalobulimus parafragilior Leme & Indrusiak, 1990 • Megalobulimus paranaguensis (Pilsbry & Ihering, 1900) • Megalobulimus pergranulatus (Pilsbry, 1901) • Megalobulimus pintoi Lange-de-Morretes, 1952 • Megalobulimus popelairianus (Nyst, 1845) • Megalobulimus proclivis (Martens, 1888) • Megalobulimus pygmaeus (Bequaert, 1948) • Megalobulimus riopretensis Simone & Leme, 1998 • Megalobulimus rolandianus Lange-de-Morretes, 1952 • Megalobulimus sanctaepauli (Ihering & Pilsbry, 1900) • Megalobulimus santacruzii (d'Orbigny, 1835) • Megalobulimus separabilis (Fulton, 1903) • Megalobulimus tayacajus Borda & Ramírez, 2016 • Megalobulimus terrestris (Spix, 1827) • Megalobulimus valenciennesii (Pfeiffer, 1842) • Megalobulimus versatilis (Fulton, 1905) • Megalobulimus vestitus (Pilsbry, 1926) • † Megalobulimus wichmanni Miquel & Manceñido, 1999 • Megalobulimus wohlersi Lange-de-Morretes, 1952 • Megalobulimus yporanganus (Ihering & Pilsbry, 1901) == Human use ==

Shells of terrestrial snails, mainly of the genus Megalobulimus, are found in fluvial shellmound (called sambaqui in Brazil) on the Capelinha archaeological site from Paleo-Indian culture of early Holocene. The shell of Megalobulimus sp. (local name: "churito") is used in the traditional ethnomedicine of Northwest Argentina when babies are hyperactive and cannot sleep well, then it is advised to put a shell under a pillow. == References ==