380 SPOBOZOA. 



Family GREGARINID^ Labbe, 1899. 



(Pages 96-107.) 



Genus ULIVINA Mingazzini, 1891. 



Vlivina, Mingazzini, 1891, p. 235 ; Labbe, 1899, p. 34 ; Minchin, 



1903, pp. 203, 325. 

 Doliocystis (part), Crawley, 1903, p. 56. 

 Ulivina, Saint-Joseph, 1907, pp. 164, 174. 

 Doliocijstis (part), Ellis, 1913, p. 287. 



Ulivina, Kamm, 1922, pp. 28-9 ; Reichenow, 1929, p. 893 ; 1932, 

 pp. 35-6 ; 1935, p. 369. 



Young trophozoites with simple papillate epimerite. 

 Sporonts free, without epimerite. Not forming syzygies. 

 Sporocysts not known. 



Remarks. — The genus was based on U. elliptica Mingazzini, 

 1891, and among the characters mentioned were " external 

 membrane forms a continuous sac round the animal " and 

 " protomerite the more dense." Neither of these characters 

 is now insisted upon. Porter (1899) described an unnamed 

 septate Gregarine from Rhynchoholus , but Crawley (1903), 

 thinking that the part of the animal which Porter took to 

 be protomerite plus epimerite was only the epimerite, and that 

 the Gregarine was a dicystid form, named it as Doliocystis 

 rhyncoholi. Kamm (1922) referred it to Ulivina as a second 

 species in that genus. Reichenow (1932, 1935) has given 

 an amended definition of the genus and considers Sycia 

 inopinata Leger, 1892, as idential with Ulivina elliptica 

 Mingazzini. The generic character that the epimerite is sur- 

 rounded at its base by a ring-like thickening is based on Leger's 

 description of S. inopinata. This feature is not possessed 

 by U. elliptica, U. rhynchoboli or by the species described 

 below. I therefore regard Ulivina as distinct from Sycia. 



311. Ulivina eunicse Bhatia & Setna. (Fig. 186). 



■fUlivina sp., Bhatia & Setna, 1935, p. 312. 

 ^Ulivina eunicse, Bhatia & Setna, 1938 {in press). 



Trophozoites elliptical, with the protomerite drawn out hke 

 a neck and curved backwards. Epimerite slender, wider 

 at its base and tapering into a fine needle. The deutomerite 

 full of inclusions. Length of protomerite to total length as 

 1 : 4-3 ; width of protomerite to width of deutomerite as 1 : 6-3. 

 Nucleus oval and situated in the anterior narrower part of 

 the deutomerite. Sporocysts not known. 



Dimensions. — Cephalont 340-4 yu. in length ; epimerite 14-8 /^ 

 in length ; protomerite 77-7 /a in length and 11-1 /x in maximum 

 width ; deutomerite 247-9 /x in length and 70-3 ft in maximum 

 width. 



