"Segmenting bodies are not commonly encountered in the blood of estivo-autumnal fever, and it has been suggested that the asexual reproduction occurs in the viscera. When segmentation is to be seen, however, the segmenting bodies are much smaller than are either those of the tertian or quartan fevers, and all evidences of the red cells are destroyed."
"For a long period of time there has existed considerable question as to whether or not these bodies represented a definite stage in the life-history of the more common forms of malarial organisms. The weight of opinion, however, seems to favor the fact that crescentic forms are derived from pigmented intracellular forms."
Clinical Diagnosis by Laboratory Methods p. 161
by L. Napoleon Boston, A.M., M.D.