Coccothrinax spissa (guano, swollen silver thatch palm) is a palm which is endemic to the island of Hispaniola. Like other members of this genus, Coccothrinax spissa is a fan palm. Stems grow singly and are 3 to 8 metres tall and 20 to 30 centimetres in diameter, usually swollen. The fruit is dark purple, 1.1 to 1.2 cm in diameter. It growns in open areas in dry habitats, or at the margins of woodlands at low elevations (below 400 m above sea level).