long-tailed planigale noun1 •A very small mouse-like marsupial, Planigale ingrami, native to floodplains and woodlands of northern Australia.An unusual adaptation is that of the long-tailed planigale (Planigale ingrami), one of the world's smallest mammals (the average male adult weighs 4.2 grams). — 2024 formslong-tailed planigales
