320 HANDBOOK OF PROTOZOOLOGY 



Suborder 1 Monocnidea Leger and Hesse 



This suborder will be divided into three families as follows: 

 The spore is oval, ovoid or pyriform; if subcylindrical, the length is less 



than four times the breadth Family 1 Nosematidae 



The spore spherical or subspherical Family 2 Coccosporidae 



The spore tubular or cylindrical (length is greater than five times the 



breadth) Family 3 Mrazekiidae 



Family 1 Nosematidae Labbe 



Genus Nosema Nageli. Each sporont develops into a single 

 spore. Numerous species. 



Nosema homhycis Nageli (Fig. 137, a, b). In all tissues of the 

 &gg, larva, pupa and adult of the silkworm, Bonibyx mori. The 

 cause of the pebrine disease. 



Nosemahryozoides {K^OTOtne^) (Fig. 137, c, d). In the germ cell 

 and cavity of the bryozoans, PhimateUa fungosa and P. repens. 

 The spore is 7 to 10 microns long by 5 to 6 microns broad. 



Nosema apis Zander (Fig. 137, e). In the honey bee. The 

 spore measures 4 to 6 microns long by 2 to 4 microns wide. 



Nosema cyclopis Kudo (Fig. 137, /). In Cyclops fiiscus. 

 The spore measures 4.5 microns by 3 microns. 



Nosema anophelis Kudo (Fig. 137, g). In larvae of Ano- 

 pheles quadrimacidatns . The spore measures 5 to 6 microns long 

 by 2 to 3 microns. 



Genus Glugea Thelohan. Each sporont develops into two 

 spores. The infected host cells become much hypertrophied, 

 producing the so-called Glugea cysts. Numerous species. 



Glugea anomala (Moniez) (Fig. 137, h, i). In the connective 

 tissue of the stickle back. The spore measures 4 to 6 microns 

 long by 2 to 3 microns. 



Glugea miilleri Pfeiffer. In the muscle of species of Gam- 

 marus. One of the several species of Microsporidia occurring 

 in this host. The spore measures 5 to 6 microns by 2 to 3 

 microns. 



Glugea hertwigiWeissorvhevg (Figs. 135, b\ 137, j). In various 

 tissue cells of the smelt, Osmerus. The spore measures 4 to 5.5 

 microns by 2 to 2.5 microns. 



Genus Perezia Leger and Duboscq. Each sporont produces 

 two spores as in Glugea, but the host cells are not hypertrophied. 

 Four species. 



