Fredius

Fredius is a genus of crabs in the family Pseudothelphusidae, containing the following species:
 * Fredius adpressus Rodríguez & Periera, 1992
 * Fredius beccarii (Coifmann, 1939)
 * Fredius chaffanjoni (Rathbun, 1905)
 * Fredius convexa (Rathbun, 1898)
 * Fredius denticulatus (H. Milne-Edwards, 1853)
 * Fredius estevisi (Rodríguez, 1966)
 * Fredius fittkaui (Bott, 1967)
 * Fredius granulatus Rodríguez & Campos, 1998
 * Fredius platyacanthus Rodríguez & Pereira, 1992
 * Fredius reflexifrons (Ortmann, 1897)
 * Fredius stenolobus Rodríguez & Suárez, 1994
 * Fredius ykaa Magalhães, 2009