290 



PROTOZOOLOGY 



30/i long, gut of lizards belonging to the genera Lacerta, Tarentola, 

 etc. 



Genus Retortamonas Grassi {Emhadomonas Mackinnon). Body 

 plastic, usually pyriform or fusiform, drawn out posteriorly; a large 

 cytostome toward anterior end; nucleus anterior; 2 flagella; cysts 

 pyriform or ovoid; parasitic in the intestines of various animals. 



Fig. 131. a, b, Bodo caudatus, X1500 (Sinton); c, B. edax, X1400 

 (Kiihn); d, Pleuromonas jaculans, X650 (Lemmermann) ; e, Rhin- 

 chomonas nasuta, XlSOO (Parisi); f, Proteroynonas lacertae, X2500 

 (Kiihn); g, Retortamonas gryllotalpae, X2000 (Wenrich); h, R. blattae, 

 X2000 (Wenrich); i, R. intestinalis, X2000 (Wenrich); j, Phyllomitus 

 undulans, XlOOO (Stein); k, Col-ponema loxodes, X650 (Stein); 1, Cerco- 

 monas longicauda, X2000 (Wenyon); m, C. crassicauda, X2000 (Dobell). 



R. gryllotalpae G. (Fig. 131, g). About 7-14^ (average lO^t) long; 

 in intestine of the mole cricket, Gryllotalpa gryllotalpa. 



R. blattae (Bishop) (Fig. 131, h). About 6-9/x long; in colon of 

 cockroaches. 



