EHYNCHOCYSTIS, 



65 



the blunt end of the parasite and measured 38-5ju- along its 

 long axis. There was a central spherical karyosome. 



Fig. 12. — Nematocystis verinicularis Hesse. (After Hesse.) 



Habitat. — Seminal vesicles of Pheretima barbadensis (Bed- 

 dard) : Punjab, Lahore. 



2. Family RHYNCHOCYSTID^ Bhatia, 1930. 



Trophozoites ovoid, spherical or elongated, with a conical 

 or cyluidro-conical trunk at the anterior end, soHtary. Sporo- 

 cysts biconical, with similar non-appendiculate poles, octozoic. 



Genus RHYNCHOCYSTIS Hesse, 1909. 



Rhynchocystis, Hesse, 1909, p. 45 ; Cognetti, 1911, p. 207 ; Berlin, 

 1924, p. 68 ; Cognetti, 1925, p. 232 ; Bhatia & Chatterjee, 1925, 

 p. 190 ; Bhatia & Setna, 1926, p. 370 ; Reichenow, 1929, p. 887 ; 

 Bhatia, 1929, p. 129; 1930, p. 158; Calkins, 1933, p. 559; 

 Troisi, 1933, pp. 327-34. 



Trophozoites ovoid or cyhndroid. Anterior pole provided 

 with a metabohc epimerite, which is most frequently elongated 

 into a conical or cylindro- conical trunk. Sporocysts with 

 characters of the family. 



Key to Indian Species. 



1 (3). Hairs present on both the mucron and 



the posterior end of the body 2. 



2. Form variable, pear-shaped, spherical 

 or gregaruiiforni. Epi33ierite meta- 

 bolic, a conical or hemispherical mu- 

 cron. Nucleus rounded, variable in [p. 67. 

 position -B. cognettii Bh. & Ch., 



3 (1). Hairs not present on any part of the 



body 4. 



4 (5). Form elongate, pear-shaped, anterior 



end broader, with a nipple-shaped epi- 

 merite. Nucleus oval, usually in [Set., p. 67. 



posterior half of the body E. mamillata Bh. & 



SPOR. I' 



