82 
were always found free in the surrounding medium near the cysts from 
which the spores had been discharged twelve hours or more. The indi- 
vidual spores are elongate hyaline ovals, whose long sides are parallel 
or nearly so, and whose ends are broadly rounded. Average spores 
measured 3 by 6.5 w. 
The dehiscence as described here is for cysts developed in water. 
It was found that cysts would develope to the sporoduct-bud stage in 
Ringer’s solution and in 3.6% Acetic acid solution but would not 
dehisce. 
Fig. 5—7. Fig. 8. 
SE 
i + 
= 
8 
Figure 5. Profile of the protomerite with the anterior depression. 
Figure 6. Cephalont. Length 180 u. 
Figure 7. Spore of G. longiducta. 3 u by 6.5 u. 
Figure 8. Association of G. longiducta. Length 850 u. 
This gregarine was found in enormous numbers in almost all of the 
hosts examined. When first removed from the intestine of the cricked 
the gregarines were very sluggish. They were however capable of very 
rapid movements and of bending the protomerite and deutomerite quite 
readily. 
The writer has received specimens of cephalonts and sporonts of 
gregarines probably referable to this species collected from Ceuthophili 
at Urbana, Illinois by Mr. Herman Doughitt. 
Gregarina melanopli Crawley. 
Gregarina melanopli Crawley, Proc. Acad. Nat. Sci. Phila., Vol. LIX, p. 220—228, 
1907. 
This species was found fairly abundant in Melanoplus luridus, M. 
femur rubrum and M. bivittatus during July. Cysts were found and the 
