391] STUDIES ON GREGARINES— WATSON 181 



Sporonts in chain of 8 to 10 individuals; average size 100/a. Often 

 3 or 4 small sporonts at posterior extremity. Length protomerite : length 

 deutomerite : : 1 : 5 or 1 : 6. 



Host: Eryx ater Fabr. larva. 



Ellis (1913c :79) refers to this paper as it is given above, but, it is 

 obvious, did not see the paper in question. 



GREGARINA GUATEMALENSIS Ellis 

 [Figure 144] 



1912 Gregarina guatemalensis Ellis 1912a :687-8 



Gregarina : Sporonts biassociative, the couple attaining 400 to 500/a 

 in length. Width not given. Ratio length protomerite : total length 

 primite : : 1 : 3 to 1 : 3.5 ; width protomerite : width deutomerite 

 : : 1 : 2.5 to 1 : 7.5. Protomerite subglobose, slightly flattened and 

 pointed at apex, faint constriction at septum. Deutomerite irregularly 

 cylindrical, narrowest at septum, widening very gradually and greatly 

 dilate in posterior fourth, terminating in a very broad flattened extrem- 

 ity, the base nearly twice as wide as the deutomerite at the septum. The 

 whole sporont is shaped like a salt cellar. Sarcocyte very thick, espe- 

 cially in posterior portion of deutomerite. Endocyte of protomerite 

 denser than that of deutomerite. Nucleus spherical, small. 



Taken at Quirigua, Guatemala. Host: Ninus interstitialis Esch. 

 Habitat: Intestine. 



In Ellis' paper (1913b) the host genus is given as Nelus instead of 

 Ninus as in the original description. 



GREGARINA GRISEA Ellis 

 [Figure 151] 



1913 Gregarina grisea Ellis 1913a :200-l 



Gregarina : Sporonts biassociative, cylindrical. Length of associa- 

 tion 500 to 1050;a. Length^primite 200 to dOOfx. Ratio length protomerite 

 : total length primite : : 1 : 4.5 to 1 : 6.5. Ratio width protomerite : 

 width deutomerite :: 1 : 1 to 1 : 5. Protomerite hemispherical, wid- 

 est at posterior margin, no constriction at septum. Deutomerite cylin- 

 drical, tapering slightly to a broadly rounded posterior extremity. En- 

 docyte dense, dark gray. Nucleus spherical. 



Cyst and spores not known. 



Taken at New Orleans, La. Host: Tenehrio castaneus Knoch. 

 Habitat : Intestine. 



