Xll GLOSSARY. 



Macrogamete. — The larger or inactive gamete in anisogamous conjuga- 

 tion. 

 Macrogametocyte. — The mother-cell of the macrogamete. 

 Meront. — A schizont of a microsporidian. 



Merozoite. — A product of asexual reproduction or schizogony. 

 Metabolic. — Changeable in form ; polymorphic. 



Metagamogony. — The process of zygotic or post-conjugation reprodviction. 

 Metamorphic. — Changeable in form. 



Microgamete. — The smaller or active gamete in anisogamous conjuga- 

 tion. 



Microgatnetocytes. — The mother-cell of microgametes. 



Microsporidia. — Cnidosporidia with small spores, membrane in one 

 piece, and one or, rarely, two polar filaments that are mvisible 

 in vivo. 



Microsporoblastic. — Producing a variable number of sporoblasts. 



Microsporous. — Producing a variable number of spores. 



Mitochondria. — Minute cytoplasmic inclusions, of a lipoidal nature, 



occurring in the form of spherical granules or rod-shaped or 



crescentic bodies. 

 Mitotic. — Indirect division of the nucleus, which is accompanied by the 



formation of a spindle of threads. 

 Monocystid. — Gregarines in which the body of the trophozoite consists 



of a single part, i. e., is not divided by a septum. 

 Monosporoblastic. — Developmg into a single sporoblast. 

 Monosporous. — -Developing into a single spore. 

 Multinucleate. — Possessing many nuclei. 

 Multiple fission. — ^A mode of reproduction in which the division of the 



nucleus is not immediately followed by the division of the cell, 



but, after repeated nuclear division, the cell divides into as many 



parts as there are nuclei. 

 Myocyte. — The ectoplasmic layer consisting of the myonemes. 

 Myoneme. — Specialized muscle-like fibrils which cause the contraction 



of the whole or a part of the body. They are embedded m the 



periphery of the endocyte and form a network around the organism. 

 Myxosporidia.- — Cnidosporidia with large spores, bivalved membrane, 



with two or four polar capsules visible tn vivo. 



Neosporidia. — Term used by Schaudinn to include Cnidosporidia, 

 Sarcosporidia, and Haplosporidia. The common features are 

 that the life of an individtial does not come to an end when repro- 

 duction takes place, but that reproduction continues throughout 

 the trophic phase, the sporoblasts being carried about by the 

 more or less active parent organism, which may ultmiately become 

 a large mass of spores. 



Nucleolus. — An exceedmgly minute, more solid particle developed 

 singly or in varying number within the nucleus of an anunal or 

 vegetable cell. Its homologue among the Protozoa is generally 

 referred to as Endoplastule or Karyosome. 



Nucleus. — More densely granular body within the substance of an animal 

 or vegetable cell. 



Octosporoblastic. — Producing eight sporoblasts. 



Octosporous. — Producmg eight spores. 



Octozoic spore. — A spore containing eight sporozoites. 



