224 PROCEEDINGS OF THE ACADEMY OF [May, 



Satellite.— 



Anterior corners of protomerite 3 microns. 



Sides of deutomerite 1-2 " 



Posterior end of deutomerite 4 " 



Sarcocyte. — Differentiated into an outer hyaline and an inner granu- 

 lar layer. Its thickness in the various parts of the same large pair from 

 which the above measurements of the epicyte were taken is given in 

 the following table : 



Primite. — 



Front of protomerite 15 microns. 



Sides of protomerite 5 " 



Sides of deutomerite 10 " 



Satellite. — 



Anterior corners of protomerite 16 microns. 



Sides of deutomerite 10-12 



Posterior end of deutomerite 6 '' 



It may be noted here that in those parts where the epicyte thickens, 

 the sarcocyte thins. A like condition has been noted by Leger for 

 Amphoroides polydesmi. 



Entocyte. — Very dense. Tinged with brownish yellow. The nucleus 

 shows merely as a lighter area. 



Size. — The solitary animals ranged in length from 200-370 microns. 

 The lengths of a number of pairs, in microns, are given in the appended 

 list: 



Priynite. Satellite. Total. 



675 750 1425 



640 710 1350 



600 750 1350 



600 710 1310 



600 700 1300 



525 500 1025 



420 450 870 



The first was the largest pair seen. In nearly all cases, the primite 

 was the shorter and broader animal. 



Habit. — The gregarines, according to the particular host examined, 

 were either nearly all solitary or nearly all associated. I examined, 

 however, but very few locusts ; so cannot say if this^be the rule. In one, 

 in which I found some fifty pairs, they occurred in an almost solid 

 mass in the host's intestine, gradually separating when placed upon the 

 slide. 



Movements. — The animals are somewhat polymorphic, undergoing 



