Abstract
A checklist is given of the 89 named species of the gregarine family Lecudinidae, exclusive of the 42 named species of the genus Lecudina (phylum Apicomplexa, class Sporoozoea, subclass Gregarinia, other Eugregarinida, suborder Aseptatina). The list includes also the synonyms, host names, locations in hosts, known geographic distributions of the species, as well as key references. Another list is given of synonyms, lapsi calami, nomina nuda, etc., associated with the genera. A new genus PARAOPHIOIDINA, with type species P. haeckeli (Ophioidina haeckelii Mingazzini, 1891) and a new species, Lankesteria ormieresi are described. The following new combinations are given: Bhatiella iwamusi (Cotyloepimeritus iwamusi Hoshide 1935), Ancora criodrilii (Anchorina criodrilii Sciacchitano 1931), Monocystella compacta (Lankesteria compacta Geus 1967), M. cyclopori (L. cyclopori Poisson 1921), M. discocelidis (Ophioidina discocelidis Mingazzini 1893), M. leptoplanae (Leidyana leptoplanae Bhatia and Setna 1924), M. planariae (Pleurozyga planariae Mingazzini 1893), M. plagiostomae (Monocystis plagiostomae Georgevitch 1951), Ascocystis barretti (Lankesteria barretti Vavra 1959), A. clarki (L. clarki Sanders and Poinar 1973), A. galliardi (L. galliardi Garnham 1973), A. legeri (Monocystis legeri Blanchard 1902), Paraophioidina apsteini (Ganymedes apsteini Theodorides and Desportes 1972), P. copiliae (Monocystis copiliae Rose 1933), P. lacrima (Monocystis lacrima Veydovsky 1882), P. oaklandi (Ganymedes oaklandi Jones 1968), P. pisae (Porospora pisae Leger and Duboscq 1911), P. portuni (Gregarina portuni Frenzel 1885), P. putanea (Zygocystis putanea Lachmann 1859), P. vibiliae (Ganymedes vibiliae Theodorides and Desportes 1972.