Several monographs of the group have been published recently dealing with the group from a systematic point of view, including their relation to their hosts. Wasielewski, "Sporozoenkunde" (1896); Labbé, "Sporozoa" (in Tierreich, 1899). Doflein's "Protozoen als Parasiten und Krankheitserreger" (1901) contains most valuable information of the diseases produced by these and other Protozoic hosts. Minchin's Monograph in Lankester's Treatise on Zoology, pt. i. fasc. 2 (1903), is a full account of the class, and admirable in every way.
For its reactions see Bütschli, Arch. Protist. vii. 1906, p. 197.
The cuticle in the allied genus Lankesteria, which is the form we figure on p. [95], is perforated by a terminal pore, through which the clear plasma of the sarcocyte may protrude as a pseudopodium.
This account is taken from Cuénot (in Arch. de Biol. 1900, p. 49), which confirms Siedlecki's account of the process in the allied genus Lankesteria in Bull. Acad. Cracow, 1899. Wolters's previous description, assimilating the processes to those of Actinophrys, is by these authors explained as the result of imperfect preservation of his material.
See p. [120].