COCCIDIA 477 



are set free upon disintegration of cyst wall in the blood plasma and 

 enter erythrocytes (Xoller) ; oocyst oval, about 33^1 by 23^. 



Genus Schellackia Reichenow. Oocyst spherical with 8 sporo- 

 zoites, without spore membrane; in gut of lizards. 



S. holivari R. In mid-gut of Acanthodadylus vulgaris and Psam- 

 modromus hispanicus; development similar to Eimeria schubergi 

 (Fig. 215); oocysts, spherical, 15-19/i in diameter, with 8 sporozoites. 



Genus Barrouxia Schneider. Oocyst wdth numerous spores, each 

 with a single sporozoite; spore membrane uni- or bi-valve, w^th or 

 without caudal prolongation. 



B. ornata S. (Fig, 221, m). In gut of Nepa cinerea; oocysts spheri- 

 cal, 34-37m in diameter, with many spores; spore with one sporozoite 

 and bivalve shell, 17-20m by 7-10m. 



Genus Echinospora Leger. Oocyst with 4-8 spores, each with a 

 sporozoite; endospore with many small spinous projections. 



E. lahbei L. (Fig. 221, n). In the gut of Lithohius mutabilis; oocyst 

 spherical, 30-40)u in diameter; spores, 11/x by 9.4^:, with bi-valve 

 shell; sporulation completed in about 20 days. 



Suborder 2 Adeleidea Leger 



The Adeleidea are on the whole similar to Eimeridea in their 

 habitat and development, but the micro- and macro-gametocytes 

 become attached to each other in pairs during the course of develop- 

 ment into gametes (Fig. 222), and each microgametocyte produces 

 a few microgametes. The zygote becomes oocyst which produces 

 numerous sporoblasts, each of which develops into a spore with 2 or 

 4 sporozoites. 



In epithelium of gut and its appended glands of chiefly invertebrates. . . 



Family 1 Adeleidae 



In cells of circulatory system of vertebrates 



Family 2 Haemogregarinidae (p. 480) 



Family 1 Adeleidae Leger 



Genus Adelea Schneider. Zygote develops into a thinly walled 

 oocyst with numerous flattened spores, each with 2 sporozoites; in 

 arthropods. 



A. ovata S. (Fig. 222). In the gut of Lithohius for ficatus; merozoites 

 17-22/i long; spores 11-14/z in diameter by 6^ thick; sporozoites 

 20m by 4m. 



Genus Adelina Hesse. Oocyst thick-walled; spores spherical, com- 

 paratively small in number; in the gut or coelom of arthropods and 

 oligochaetes. 



