514 



PROTOZOOLOGY 

 b ..^l)j//„ e 



Fig. 236. a, Butschlia parva, X670 (Schuberg); b, Blepharoprosthium 

 pireum, X470 (Hsiung); c, Didesniis quadrata, X270 (Hsiung); 

 d, Blepharosphaera intestinalis, X600 (Hsiung); e, Blepharoconus cervi- 

 calis, X360 (Hsiung); f, Bundleia postciliata, X530 (Hsiung); g, Bleph- 

 arozoum zonatum, X200 (Gassovsky). 



B. cervicalis Hsiung (Fig. 236, e). 56-83ju by 48-70^1; Iowa. 



Genus Bundleia da Cunha et Muniz. Ellipsoid; cytostome 

 small; cilia at anterior and posterior ends, posterior cilia much 

 less numerous; in caecum and colon of horse. 



B. 'postciliata (Bundle) (Fig. 236, /). 30-56m by 17-32^. 



Genus Polymorpha Dogiel. Flask-shaped; ciliation on anterior 

 region, a few caudal cilia; macronucleus disc-shaped; contractile 

 vacuole terminal; in caecum and colon of horse. 



P. amvulla D. (Fig. 237, a). 22-36^ by 13-21/i. 



Genus Holophryoides Gassovsky. Oval, with comparatively 

 large cytostome at anterior end; ciliation uniform; macronucleus 

 small, ellipsoid; contractile vacuole subterminal; in colon and 

 caecum of horse. 



H. ovalis (Fiorentini) (Fig. 237, h). 95-140m by 65-90/^. 



