144 ILLINOIS BIOLOGICAL MONOGRAPHS [354 



very plainly of the same gregarine, whereas Fig. 2>2 seems almost certainly to be- 

 long to a different species. Further, the form figured by Leidy in 1889 is not so 

 closely like that shown by Figs. 31 and 32 as to render it certain that the two are 

 the same. 



I therefore include the three different forms under the same name, giving 

 only the figures and reference, until such time as sufficient material is obtained to 

 determine accurately what the actual facts may be. 



The gregarines figured were about 300 microns long." 



It is evident that the form figured by Leidy (1889; my figure 113) 

 and in his Mss. (my figure 78), are the same species. The proportions 

 agree, the shapes of the protomerite are very similar, and the epimerite 

 shown on figure 78 coincides with Leidy 's description of the epimerite. 



Crawley's figure 32 (my figure 104), may or may not be a cepha- 

 lont of the same species, but the figure 33 (my figure 105), is obviously 

 unlike and must be placed among the uncertain species. (See group at 

 end of chapter). 



Ellis placed the species in the genus Anthorhynchus, but the epi- 

 merite, as described by Leidy, coincides with Labbe's description of the 

 genus Asterophora (1899:22) : 



"fipimerite en forme de bourrelet circulaire a cotes saillantes radices en por- 

 tant qu centre un mammelon saillant. Sporadin allongee," 



except that Leidy does not mention the central papilla. The descrip- 

 tion of the genus Anthorhynchus does not fit the case (Labbe 1899:19) : 

 ''Epim. en gros bouton cannele." 



ASTEROPHORA CRATOPARIS Crawley 



[Figure 77] 



1903 Asterophora cratoparis Crawley 1903 :54 



1913 Anthorhynchus cratoparis Ellis 1913b :279 



Asterophora : Length 540/i,. Width not given. Ratio length proto- 

 merite : total length : : 1 : 5 ; width protomerite : width deutomerite : : 

 1 : 1.1. Protomerite nearly reniform with conical projection at apex 

 upon which rests the epimerite. Protomerite 1.5 times as wide as high. 

 Deep constriction at septum. Deutomerite widest at shoulder, tapering 

 thence and terminating bluntly. Epimerite consisting of a number of 

 "ribs projecting from a central knob." Endocyte not described. Nu- 

 cleus spherical, with one karyosome. 



Cysts and spores unknown. 



Taken at Swarthmore, Pa. Host : Cratoparis lunatus Fab. Habitat : 

 Intestine. 



