476 



PROTOZOOLOGY 



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Fig. 221. a-e, Thelohania legeri (a, b, sporogony; c, d, mature pan- 

 sporoblasts; e, a spore), X1570 (Kudo); f-h, T. opacita (f, g, octo- 

 sporous and tetrasporous pansporoblasts; h, a spore), X1570 (Kudo); 

 i-1, Stempellia magna (i-k, spores; 1, a spore with the extruded polar 

 filament), X1570 (Kudo); m, n, Trichoduboscqia epeori (m, pansporo- 

 blast with mature spores, X1330; n, a spore, X2670) (Leger); o, p, 

 Plistophora longifilis (Schuberg). 



Genus Duboscquia Perez. Sporont develops into 16 sporoblasts 

 and finally 16 spores. One species. 



D. legeri P. In body cavity of ReticuUtermes lucifugus; spores 

 5/z by 2.5/i. 



Genus Tricho duboscquia Leger. Similar to Duboscquia in num- 

 ber of spores produced from each sporont; but spore with 4 (or 3) 

 rigid transparent prolongations of shell, difficult to see in fife. 

 One species. 



T. epori L. (Fig. 221, w, n). In fat-bodies of nymphs of Epeorus 

 torrentium and Rhithrogena semicolorata ; sporonts spherical, 9-IOm 

 in diameter, with usually 16 spores; prolongations of shell, 20- 

 22/i long; spores pyriform, 3.5-4jU long. 



Genus Plistophora Gurley. Sporont develops into variable 

 number of (often more than 16) sporoblasts, each of which be- 

 comes a spore. Several species. 



