tr- 



Lanktsterella ranamm (Lank.), the parasite of the red blood-corpuscles 

 of the edible Frog, described originally as Drepanidium ranarum by 

 Lankester in 1882, and previously without name in 1871. The large ovals 

 represent the red corpuscles of the frog; the dark central mass is the 

 nucleus, N. In A two spindle-shaped parasites are seen; in B one larger 

 parasite with nucleus n preparing to divide ; in c the parasite is V -s haped. 

 In D the parasite has become spherical, and is so in E also. In F the 

 spherical parasite has divided into a number of spores mz, with a central 

 residual body np. The figures G to N represent supposed stages in con- 

 jugation of small and large forms ; o is an encysted phase ; and P a 

 spore or sporozoite of the sexual generation similar to the needle-shaped 

 exotospores of Laverania. (See Fig. 44.) All the figures magnified 

 2,250 diameters. (After Hintze from Minchin's section on Sporozoa in 

 Lankester's "Treatise on Zoology.") 



