318 PROTOZOOLOGY 



E. barreti Taliaferro et Holmes. In colon of snapping turtle, 

 Chelydra serpentina. 



E. terrapinae Sanders et Cleveland. Trophozoites 10-15ju long; 

 cysts 8-14ju in diameter, tetranucleate when mature; in colon of 

 Chrysemys elegans. 



E. serpentis da Cunha et da Fonseca. In intestine of the snake, 

 Driniohius bifossatus in South America. 



E. ranarum (Grassi) (Fig. 146, a, b). In colon of various species 

 of frogs; resembles E. histolytica; 10-50^ in diameter; cysts are 

 usually tetranucleate, but some contain as many as 16 nuclei; 

 amoebic abscess of the liver was reported in one frog. 



E. minchini Mackinnon. In gut of tipulid larvae; 5-30^1 in 

 diameter; cyst nuclei up to 10 in number. 



E. mesnili Keilin. In gut of dipterous insects, Trichocera hie- 

 malis and T. annulata (larvae); 6-24;u long and multinucleate; 

 plasmotomy; cysts 8-1 1m in diameter, with 2 or 4 nuclei. 



E. apis Fantham et Porter. In Apis mellifica; similar to E. coli. 



E. brasiliensis (Carini) (Fig. 144, c). In the cytoplasm of many 

 species of Protociliata; trophozoites 5.3-14.3ju in diameter; cysts 

 about 9.4^ in diameter, uninucleate; no effect upon host ciliates 

 even in case of heavy infection (Stabler and Chen). 



Genus Endolimax Kuenen et Swellengrebel. Small; vesicular 

 nucleus with a comparatively large irregularly shaped endosome, 

 composed of chromatin granules embedded in an achromatic 

 ground mass and several achromatic threads seen connecting the 

 endosome with membrane; commensal in hindgut in man or ani- 

 mals. Several species. 



E. nana (Wenyon et O'Connor) (Fig. 146, c, d). In colon of 

 man; lobopodia formed quite actively, but sluggish; 6-1 2yu in 

 diameter; cytoplasm fairly well differentiated into 2 zones; nu- 

 cleus difficult to make out in life; food vacuoles contain bacteria; 

 cyst ovoid, 8-10^ in diameter, tetranucleate when mature; widely 

 distributed. 



E. gregariniformis (Tyzzer). In caecum of fowls; 4-1 2/i in 

 diameter; cysts uninucleate. 



E. ranarum Epstein et Ilovaisky (Fig. 146, e, /). In colon of 

 frogs; cyst octonucleate, up to 25ij. in diameter. 



E. blattae Lucas. In colon of cockroaches; 3-15^ long; cyst with 

 more than one nucleus. 



Genus lodamoeba Dobell. Vesicular nucleus, with a large en- 



