Falcaustra species (Nematoda: Kathlaniidae) parasitic in turtles and frogs in Ontario
Five Falcaustra species are reported from southern Ontario: F. inglisi (Anderson, 1964) Baker, 1980 from Rana catesbeiana and R. clamitans (new host record) of Algonquin Park; F. chelydrae Harwood, 1932 and F. wardi (Mackin, 1936) from Chelydra serpentina of Guelph; F. affinis (Leidy, 1856) from Chrysemys picta marginata (new host record) of Guelph; and F. catesbeianae Walton, 1929 from Rana catesbeiana of Long Point, Ontario. The last four species have not previously been reported in Canada. They are redescribed based on specimens from Ontario and museum specimens from North America. Examination of type specimens of Spironoura hylae Reiber, Byrd &Parker, 1940 and Spironoura spiculata Reiber, Byrd &Parker, 1940 revealed that they are synonymous with F. affinis. Type specimens of Falcaustra longespiculata Walton, 1927 from Terrapene Carolina of North America are shown to be lost. This species, which may be synonymous with F. affinis, is designated a species inquirenda.