| halicephalobus gingivalis (stefanski, 1954) from a fatal infection in a horse in ontario, canada with comments on the validity of h. deletrix and a review of the genus. | although the original description given by stefanski (1954) was satisfactory, anderson & bemrick (1965), in describing h. deletrix (= micronema deletrix), claimed stefanski's description was "inadequate" and the species a "species inquirenda". thus, infections in horses and humans have been assigned to h. deletrix. we believe the species reported in horses and humans is h. gingivalis and that h. deletrix is its synonym. h. gingivalis is separated herein from forms found free-living. the genital ... | 1998 | 9772725 |