590 



APPENDICES. 



structureless protoplasmic bodies much smaller than, and within 

 or attached to, the red blood- corpuscles (Fig. 233). These rapidly 

 change their shape, exhibiting amoeboid movement. They were 

 first described by Marchiafava and Celli, and possibly represent the 

 first stage in the life -history of the hsematozoon. Marchiafava and 

 Celli suggested the name Plasmodium malarise. Second, minute 



FIG. 233. NON-PIGMENTED AMEBOID FoEMS (Marchiafava and Celli). 



masses of finely granular or of hyaline protoplasm enclosing granules 

 of pigment (Fig. 234). These forms are sometimes present in large 

 numbers, and at other times can be found only with difficulty. 

 They are more or less spherical, but exhibit amoeboid movement, 

 and rapidly change their form. The pigment granules are also in 

 active movement. There may be one or more of these amoeboid 



FlG. 234. PlGMENTED AM(EBOID FORMS (Golgi). 



bodies to a blood-corpuscle, and they vary in size ; one may occupy 

 the whole of the corpuscle. In cases of pernicious malaria, similar 

 bodies may be seen, in tissue sections, in the corpuscles filling the 

 capillaries. Third, forms which appear like isolated grains, and 

 larger homogeneous bodies surrounded by clear spaces which change 

 in outline. 



Extra-corpuscular bodies. These are the most striking, and 



FIG. 235. SEMI-LUNAR BODIES OF LAVERAN (Golgi). 



perhaps the most interesting, forms. First, the semi-lunar bodies 

 Laveran. These are crescent -shaped bodies, sometimes pointed 



