SARCODINA, PROTEOMYXA 



291 



protoplasmic contents; body often reddish because of the forma- 

 tion of carotin; multinucleate; multiplication in encysted stage 

 into uni- or multi-nucleate bodies; cysts often also reddish. 

 Genus Vampyrella Cienkowski. Heliozoa-like; endoplasm 



Fig. 133. a, Labyrinthula cienkoivskii, X200 (Doflein); b-e, Laby- 

 rinthomyxa sauvageaui (b, c, flagellate forms, XlOO; d, e, amoeboid 

 forms, X500) (Duboscq); f, g, Pseudospora volvocis, X670 (Robert- 

 son); h-j, Protomonas amyli (Zopf); k, 1, Vampyrella lateritia, X530 

 (k (Leidy), 1 (Doflein)); m, n, Nuclearia delicatula, X300 (Cash). 



vacuolated or granulated, with carotin granules; numerous vesic- 

 ular nuclei and contractile vacuoles; midtinucleate cysts, some- 

 times with stalk; 50-700/1 in diameter. Several species. 



V. lateritia (Fresenius) (Fig. 133, k, I). Spherical; orange-red 



