174 ILLINOIS BIOLOGICAL MONOGRAPHS [384 



GREGARINA TENUIS Hammerschmidt 



1848 Gregarina tenuis 

 1851 Gregarina tenuis 

 1863 Gregarina tenuis 



Host: Allecula sp. 



No mention is made of this species among those in Labbe's Sporo- 

 zoa or in the list of Sporozoa in Lankester 's Treatise (1903). The spe- 

 cies is probably a true Gregarina, for Frantzius included in this genus 

 only gregarines " — stets zu zweien aneinandergehef tet. " 



He credits the discovery of the species to Hammerschmidt. 



GREGARINA ELONGATA Frantzius 



[Figure 154] 



1848 Gregarina elongata Frantzius 1848 :193,195 



1851 Gregarina elongata Diesing 1851 :13 



1863 Gregarina elongata Lankester 1863 :94 



Host : Crypticus sp. 



This species is well illustrated by Frantzius. It does not appear in 

 Labbe's Sporozoa. 



GREGARINA SCARABAEI Lankester 



1851 Gregarina Scarahaei relicti Leidy 1851 :208,287 



1863 Gregarina Scarahaei Lankester 1863 :94 



This species is known only from the original description, which is 

 as follows : 



"Body cylindro-fusiform. Superior division presenting four sides of a hexa- 

 hedron, subacute. Nuclear body of inferior division transparent, globular or ellip- 

 tical, containing several coarse granules. Length from i/66 to % lines; head 1/400 

 in. to 1/133 in. long, by 1/285 in- to i/iii in. broad. Anterior portion of inferior 

 division 1/200 in. to 1/86 in. broad, posterior division 1/666 in. to 1/250 in. broad. 

 Longitudinal lines of inferior division more distinct than those of upper division, 

 1/8000 in. apart." 



No drawing accompanies the description. 



Host: Scardhaeus relictus larva. 



This species takes the first binomial name applied to it, that of 

 Lankester. 



