269] 



STUDIES ON GREGARINES— WATSON 



59 



The data and fibres given by Leger and Duboscq (1904) and by- 

 Schneider (1875) compare as follows: 



Shape protomerite 



Shape deutomerite 



Nucleus 



Shading in figure 



Apex papillate, with 

 pseudo-canal, lower part 

 cylindrical, upper part 

 broadly conical, no con- 

 striction in protomerite. 



Irregularly cylindrical, 

 tapering from anterior 

 third to a sharp but 

 rather broad cone. Twice 

 as wide at shoulder as 

 at protomerite. 



Spherical. One large 

 karyosome. 



Protomerite Dark 

 Deutomerite Dark 



Apex papillate with pseudo- 

 canal, lower part broader 

 than upper and separated 

 from above by a deep cir- 

 cular constriction. Deep 

 constriction at septum. 



Regularly cylindrical, of ap- 

 proximately same width 

 throughout, tapering slightly 

 at posterior tip. Slightly 

 narrower than protomerite. 



Ellipsoidal (i : 1.7) 

 one large karyosome. 



Very light 

 Dark 



with 



The proportions of the body dimensions, the shape of the two pro- 

 tomerites, and the shape of the two nuclei indicate at a glance that more 

 than one species is under consideration and the species described by 

 Leger and Duboscq should be renamed. I therefore designate it Steno- 

 phora dauphinia. 



STENOPHORA SPIROBOLI Crawley 



[Figure 10] 



1903 Stenophora spiroholi 

 1903 Cnemidospora spiroholi 

 1913 Stenophora spiroholi 



Crawley 

 Crawley 

 Ellis 



1903 :51 

 1903a :638 

 1913b :286 



Stenophora : Sporonts solitary, elongate. IMaximum length 1000/a ; 

 width not given. Ratio length protomerite : total length :: 1 : 32; 

 width protomerite : width deutomerite : : 1 : 1.5. Protomerite small, 

 rounded at anterior end, one-third as high as wide. Septum concave up- 

 ward, thus forming a protomerite in the shape of a double convex lens. 

 No constriction at septum; perfectly smooth contour throughout, from 



