309] 



STUDIES ON GREGARINES WATSON 



99 



GREGARINA BLATTARUM Siebold 

 [Figure 184] 



1839 Gregarina Uattarum Siebold 1839:57 



1848 Gregarina Uattarum Stein 1848:223 



1848 Gregarina Blattarum Frantzius 1848:193,195 



1851 Gregarina Blattarum Diesing 1851:10 



1853 Gregarina Blattae orientalis Leidy 1853 :239 



1863 Gregarina Uattarum Lankester 1863:94 



1875 Clepsidrina Uattarum Schneider 1875 :580 



1881 Gregarina Uattarum Butschli 1881:384-409 



1891 Gregarina Uattarum Wolters 1891:115-24 



1893 Gregarina Uattarum Marshall 1893:25-45 



1899 Gregarina Uattarum Labbe 1899:10 



1900 Clepsidrina Uattarum deMagalhaes 1900:38-44 

 1903 Gregarina Uattarum Crawley 1903:44 

 1907 Gregarina Uattarum Hall 1907 :149 

 1913 Gregarina Uattarum Ellis 1913b:265 

 1913 Gregarina Uattarum Ellis 1913c :83-84 



Gregarina: Sporonts biassociative, rather stout bodied, more or 

 less irregular in outline. Length of sporonts 450 to 500/u,. Width 185 to 

 200/1. Ratio length protomerite : total length primite : : 1 : 5 ; width pro- 

 tomerite : width deutomerite : : 1 : 2. Protomerite of primite cylindrical 

 in posterior two thirds, rounded anteriorly, no constriction at septum. 

 Very little wider than high. Protomerite of satellite flattened, wider 

 than protomerite of primite, twice as wide as high. Deutomerite irregu- 

 larly cylindrical, widest in posterior half of primite and in anterior half 

 of deutomerite. More or less pointed at posterior extremity. Sarcocyte 

 layer thick. Nucleus small, spherical, (44/t in diameter deMagalhaes ) 

 with from four to six karyosomes. Epimerite a simple hyaline knob. 



Cysts spherical or ovoidal. Spore ducts reach to outside of trans- 

 parent cyst cover. Spore ducts 8 to 10 in number. Spores cylindrical to 

 barrel shaped, truncate at ends, 8.5 by 3.7 and 4 by 8/x. 



Taken at Danzig, Berlin, Heidelberg, Bonn, and Leipsic, at Paris, 

 at Philadelphia, Pa. and at Rio Janeiro, Brazil. Hosts: Penplaneta 

 orientalis (L.) (Blattae or.); P. americana (L.) ; Blatella Qirmanica 

 (L.) (Ectobia germ.). Habitat: Intestine. 



This is a remarkably cosmopolitan species, as seen from the loca- 

 tions where it was taken. It is remarkable also in that the naiue has re- 

 mained almost undisputed since its discovery. 



