328 Sporozoa 



Fig. 6. 36. Spores of Haplosporidia: A. Haplosporidium heterocirri, 

 xl540 (after Caullery and Mesnil). B-D. Coelosporidium periplanetae, from 

 hematoxylin (B) and Feidgen preparations (C, D); x2910 (after Sprague). 

 E. Vrosporidium fuliginosum, x2800 (after Caullery and Mesnil). F. Hap- 

 Josporidium chitonis, x3150 (after Goodrich). G. Haplosporidium caulleryi, 

 xI540 (after Mercier and Poisson). H. Anurosporidiuni pelseneeri, x2660 

 (after Caullery and Chappellier). I. Haplosporidium cernosvitovi, x2000 

 (after Jirovec). 



resents an outer membrane enclosing an operculate endocyst. Nuclear 

 division within the spore, and spores with two nuclei, have been reported 

 for Coelosporidhirn periplanetae (60, 125). The nuclei of a binucleate 

 spore apparently fuse as the spore approaches maturity (125). In Ichthyo- 

 sporidiuni giganteum, the two sporic nuclei are said to undergo meiosis. 

 Two haploid nuclei then fuse to form a synkaryon while the other two 

 degenerate (129). In addition, it has been reported that an encysted Plas- 

 modium of /. hertwigi may divide into amoeboid gametes which undergo 

 syngamy within the cyst, the zygotes producing the pansporoblasts (129). 



The following genera have been assigned to the Haplosporidia: Anurosporidium 

 Caullery and Chappellier (Fig. 6. 36, H), Bertramia Caullery and Mesnil, Coelospo- 

 ridium Mesnil and Marchoux (125), Haplosporidium Caullery and Mesnil (63), Ichthy- 

 osporidium Caullery and Mesnil (129), Nephridiophaga Ivanid (61), and Urosporidium 

 Caullery and Mesnil (Fig. 6. 36, E). 



LITERATURE CITED 



1. Adic, II. 1924. Bull. Soc. Path. Exot. 17: 605. 



2. Allegre, C. F. 1948. Trans. Amer. Micr. Soc. 67: 211. 



3. Aral, K. 1925. Arch. f. Protistenk. 50: 213. 



4. Badudieri, B. 1932. Arch. f. Protistenk. 76: 421. 



