MORPHOLOGY AND TAXONOMY OF THE SPOROZOA 567 



Family 1. Adeleidae. 



3. Sporocysts few (3) ; 4 to 6 sporozoites 



Genus Chagaselta Machado 

 Sporocysts numerous; 4 sporozoites 4 



4. Macrogamete very long; 25 to 30 sporo- 



cysts Genus Orcheobius 



Schuberg and Kunze 

 Macrogamete spheroidal, many sporocysts 5 



5. Microgametes 4 in number; 4 sporozoites 



Genus Klossia A. Schneider 

 Microgametes 2 in number; sporocysts 



with ±30 sporozoites Genus Klossiella 



Smith and Johnson 

 Doubtful genus — Pneumocystis Delanoe' 1912. 



Sub-order 2. Haemogregarinina. 



Three families, each with a single genus. 



1. Zygote forms sporozoites without forming 



sporocysts Genus Haemogregarina 



Danilewsky 

 Zygote forms several sporoblasts 2 



2. Sporoblasts produce sporocysts and sporo- 



zoites in oocyst Genus Hepatozoon Miller 



Sporoblasts leave oocyst and develop spor- 

 ocysts and sporozoites independently 



Genus Karyolysus Labbe 



Class II. CNIDOSPORIDIA Doflein. 



1. Spores large, with valves; polar capsules 



visible in vivo 2 



Spores small; membrane one piece; cap- 

 sules invisible in vivo Order 3. Microsporidia 



2. Spore membrane bivalved; 1, 2 or 4 polar 



capsules Order 1. Myxosporidia 



Spore membrane trivalved; 3 polar cap- 

 sules Order 2. Actinomyxida 



Order 1. Myxosporidia Butschli. 



1. Spores elongated at right angles to sutural 



plane Sub-order 1 . Eurysporina 



Spores spheroidal, oval or elongated in 

 sutural plane 2 



2. Spores spherical or sub-spherical; no iodin- 



ophilus vacuole Sub-order 2. Sphaerosporina 



Spores with sutural plane in long axis or 



oblique to it Sub-order 3. Platysporina 



Sub-order 1. Eurysporina (Eurysporea Kudo). 



One family Family Ceratomyxidae 



Family Ceratomyxidae Doflein. 



1. Spore valves conical and hollow. . . .Genus Ceratomyxa Thelohan 

 Spore valves otherwise 2 



