1. On the life-history of the Sporozoa of Spatangoids, with observations on some allied forms;Goodrich;Quart. Journ. Micr. Sci.,1916
2. Fortpflanzung einer Gregarine Schaudinnella henleae;Nusbaum;Zeitschc. wiss. Zool.,1903
3. Studies on Gregarines I and II;Kamm;Illinois Biol. Monog.,1916
4. Le genre Doliocystis;Brasil;C. R. Acad. Sci.,1908
5. Grayallia quadrispina, a New Genus and Species of Monocystid Gregarine Parasite in an Oligochaete, Pheretima heterochaeta (Mich.)