Panaeolus sphinctrinus (Fr.) Quél. syn. P. campanulatus var. sphinctrinus (Fr.) Quél. Gezähuter Düngerling. Cap 2–4cm across, broadly conical to bell-shaped sometimes with a slight umbo, dark grey to almost black when moist drying out pale grey with dark ochre centre, margin overhanging gills forming pale delicate teeth. Stem 60–120 x 2–3mm, grey, paler at apex. Flesh thin, pale grey. Gills adnate, grey soon becoming black, edge white. Spore print black. Spores lemon-shaped, 14–18 x 10–12um. Habitat in pastureland, on or near dung. Season late spring to autumn. Common. Not edible. Distribution, America and Europe.