ABSTRACT

New class. Apical complex well developed; conoid (formed by microtubules) a complete, hollow, truncate cone; reproduction generally both sexual and asexual; oocysts generally present, containing infective sporozoites resulting from sporogony; locomotion by body flexion, gliding, undulation of longitudinal ridges or flagellar lashing; flagella present only in microgametes of some groups; pseudopods ordinarily absent, and if present used for feeding, not locomotion; homoxenous or heteroxenous. (This class is named for the structure of its conoid; the term "Sporozoa" is obsolete.)