| | | in color. --------------+-------------------+------------------+--------------------- STAINED SPECIMEN --------------+-------------------+------------------+--------------------- | P. vivax | P. malariae | P. falciparum | (benign tertian) | (quartan) | (malignant tertian) | | | (aestivo-autumnal) --------------+-------------------+------------------+--------------------- Character of |Larger and lighter |About normal size |Shows distortion and infected red | pink than normal | and staining. | some polychromato- cell. | red cell. Shows | | philia and stippl- | “Schüffner’s | | ing. Rarely we have | dots.” | | coarse cleft-like | | | reddish dots-- | | | Maurer’s spots. --------------+-------------------+------------------+--------------------- Character of |Chromatin mass |Rather thick round| Very small sharp young | usually single and| rings which soon | hair-like rings, schizont. | situated in line | tend to show as | with a chromatin | with the ring | equatorial bands.| mass protruding from | of the irregularly| | the ring. Often | outlined blue | | appears on periphery | parasite. | | of red cell as a | | | curved blue line | | | with prominent | | | chromatin dot. | | | Frequently two | | | chromatin dots. --------------+-------------------+------------------+--------------------- Character of |Vacuolated or Fig. |More marked band | Not often found in half-grown | 8 loop-like body | forms stretching | peripheral circula- schizont. | with single | across r.b.c. | tion. Chromatin | chromatin aggrega-| | still compact. | tion. Schüffner’s | | | dots. | | --------------+-------------------+------------------+--------------------- Character of |Fine pigment rather|Coarse pigment |Very rarely seen in mature | evenly distributed| rather peripher- | peripheral circula- schizont. | in irregularly | ally arranged in | tion in ordinary | outlined parasite.| an oval parasite.| infection. Pigment