COCCIDIA 



479 



A. deronis Hauschka and Pennypacker. In peritoneum of Dero 

 limosa; oocyst contains 12 ( 10-14) spores; meiosis at the first zygotic 

 nuclear division; haploid chromosome number 10; the life cycle is 

 completed in 18 days at room temperature (Hauschka, 1943). 



Genus Klossia Schneider. Oocyst with numerous spherical spores, 

 each with 3-10 sporozoites. Several species. 



K. helicina S. In the kidneys of various land-snails, belonging to 

 genera Helix, Succinea, and Vitrina; ooc3^st with a double envelope 

 120-180/i in diameter; spores 12/i in diameter, with 5-6 sporozoites. 



Fig. 223. a, Adelina dimidiata, spore, XlOOO (Schellack); b, A. odo- 

 spora, oocyst, XlOOO (Hesse); c, Orcheobius herpobdellae, X550 (Kunze); 

 d, e, Klossiella muris (d, renal cell of host with 14 sporoblasts; e, spore), 

 X280 (Smith and Johnson); f, Legerella hydropori, oocyst, XlOOO 

 (Vincent); g, h, Haemogregarina of frog, X1400 (Kudo); i-m, H. simondi, 

 in the blood of the sole, Solea vulgaris, X1300 (Laveran and Mesnil); 

 n, Hepatozoon muris, spore, X420 (Miller); o, Karyolysus lacertarum, 

 X700 (Reichenow). 



Genus Orcheobius Schuberg and Kunze. Macrogametes vermi- 

 form; oocyst with 25-30 spores, each with 4 (or 6) sporozoites. 



0. herpobdellae S. and K. (Fig. 223, c). In the testis of Herpobdella 

 atomaria; mature macrogametes 180;^ by 30//; microgametes 50/i 

 by 12^; schizogony in April and May; sporogony in June and July. 



