MICROSPORIDIA 



537 



Suborder 1 Monocnidea Leger and Hesse 



Spore oval, ovoid, or pyriform, if subcylindrical length less than 4 times 



breadth Family 1 Nosematidae 



Spore spherical or subspherical Family 2 Coccosporidae (p. 541) 



Spore tubular or cylindrical, width less than 1/5 length, straight or curved 

 Family 3 Mrazekiidae (p. 541) 



Family 1 Nosematidae Labbe 

 The majority of Microsporidia belong to this family. 

 Genus Nosema Nageli. Each sporont develops into a single spore. 



Numerous species. 



A^. bombycis N. (Fig. 257, a, b). In all tissues of embryo, larva, 



pupa and adult of Bombyx mori; spores 3-4/i by 1.5-2/z, polar fila- 



Q 



6" 0^ B^ 



Fig. 257. a, b, Nosema bombycis (a, spore, X1470; b, an infected silk- 

 worm larva, X§) (Kudo); c, d, N.bryozoides (c, infected funiculus, X270 

 (Braem); d, a spore, X1200 (Schroder)); e, f, N. apis, X1560 (Kudo); 

 g-i, N. cydopis, X1560 (Kudo); j, k, N. anophelis, X1600 (Kudo); 1, m, 

 Glugea anomala (1, section of an infected Gasterosteus aculeatus (Th61o- 

 han); m, a spore, X1500 (Stempell)); n, G. herhvigi, X1670 (Weissen- 

 berg); o, Perezia mesnili, XSOO (Paillot); p, q, Gurleya richardi X1200 

 (C^pede). 



ment 57-72/x long; the causative organism of the pebrine disease of 

 the silkworm. 



A^. bryozoides (Korotneff) (Fig. 257, c, d). In germ cells and cavity 

 of Plumatella fungosa and P. repens; spores 7-10m by 5-6^1; 



A^. apis Zander (Fig. 257, e, /). In the gut cf hcney bees; spores 

 4-6m by 2-4m. 



N. cydopis Kudo (Fig. 257, g-i). In Cyclops fuscus; spores 4.5^ by 

 3m. 



A'', anophelis K. (Fig. 257, j, k). In Anopheles quadrimaculatus 

 (larvae) ; spores 5-6/x by 2-3)u. 



