Maritrema

Maritrema is a genus of trematodes (flukes) in the family Microphallidae, although some have suggested its placement in the separate family Maritrematidae. It was first described by Nikoll in 1907 from birds in Britain. Species of the genus usually infect birds, but several have switched hosts and are found in mammals, such as the marsh rice rat. Several species use the fiddler crab Uca pugilator as an intermediate host.

Species include: An undescribed species, "Maritrema sp. I", is known from clapper rails (Rallus crepitans) and marsh rice rats (Oryzomys palustris) in the eastern United States. M. heardi was placed in a separate genus Floridatrema upon its description in 1994 on the basis of a morphological difference, but was reassigned to Maritrema in 2005, as molecular data indicated that Maritrema would be paraphyletic without the inclusion of the species.
 * Maritrema acadiae (Swales, 1933)
 * Maritrema arenaria Hadley and Castle, 1940
 * Maritrema bonaerensis Etchegoin and Martorelli, 1997
 * Maritrema carpathica Matskasi, 1984
 * Maritrema chiriacae Deblock, 1975
 * Maritrema feliui Gracenea, Montoliu and Deblock, 1993
 * Maritrema gratiosum Nikoll, 1907
 * Maritrema heardi (Kinsella and Deblock, 1994)
 * Maritrema humile Nikoll, 1907
 * Maritrema lepidum Nikoll, 1907
 * Maritrema majestova Ke, 1976
 * Maritrema neomi Tkoch, 1998
 * Maritrema oocysta Lebour, 1907
 * Maritrema paracadiae Ching, 1974
 * Maritrema prosthometra Deblock and Heard, 1969
 * Maritrema pulcherrima Travassos, 1928
 * Maritrema pyrenaica Deblock and Combes, 1965
 * Maritrema subdolum Jägerskiöld, 1909
 * Maritrema Poulini
 * Maritrema novaezealandense