275] STUDIES ON GREG ARINES— WATSON 65 



Schneider et nous la distinguerons de cette derniere sous le nom de Stenophora 

 producta n. sp. . . . Nous n'avons pas remarque de ligne equatoriale a la sur- 

 face des sporocystes de Stenophora producta, ce qui distingue encore cette espece 

 de Stenophora iuli." 



STENOPHORA ACULEATA Leger and Duboscq 

 [Figures 19 and 20] 

 1904 Stenophora aculeata Leger and Duboscq 1904 :368-70 



Stenophora: Sporonts solitary, elongate. Maximum length 60/*; 

 width not given. Ratio length protomerite : total length :: 1 : 4 

 (approx.) ; width protomerite : width deutomerite :: 1 : 15. Proto- 

 merite subglobular, a short cylindrical portion at the base, somewhat di- 

 lated in middle, terminating in a small delicate elongate papilla 1 to 2ft 

 long. A conspicuous constriction at septum. Deutomerite cylindrical, 

 broadly rounded behind. The endocyte of the deutomerite with proto- 

 plasmic granules smaller than those of protomerite and less deeply stain- 

 ing. Nucleus very large, subspherical in diameter, two thirds to seven 

 eights the width of deutomerite, with a large karyosome. Cysts and 

 spores unknown. 



Taken in Dauphine, France. Host : Craspedosoma rawlinsii simile 

 Verh. Habitat : Intestine. 



STENOPHORA POLYXENI Leger and Duboscq 

 [Figure 21] 



1900 Stenophora polyxeni Leger and Duboscq 1900 :1566-8 



1903 Stenophora polyxeni Leger and Duboscq 1903 :xciii 



1904 Stenophora polyxeni Leger and Duboscq 1904:370-1 



Stenophora : Sporonts solitary, obese. Average length 80/*. Width 

 not given. Ratio length protomerite : total length : : 1 : 10 ; ratio 

 width protomerite : width deutomerite :: 1 : 2 (approx). Protomerite 

 very small, hemispherical or somewhat flattened. No apparent pore in 

 anterior end, as in many Stenophoridae. Protomerite twice as wide as 

 high. Widest at or just above base. Slight constriction at septum. Deu- 

 tomerite elongate ovoidal in young and sac-shaped in older sporonts. En- 

 docyte fairly homogeneous. Nucleus spherical, half the width of deuto- 

 meritet, with a large karyosome. Cyst and spores not known. 



Taken at Grenoble, France. Host: Polyxenus lagurus (Linn.) 

 Latreille. Habitat : Intestine. 



