54 ILLINOIS BIOLOGICAL MONOGRAPHS [292 



Parisi (1912) followed Auerbach in his paper dealing with Myxosporidia 

 from Italian waters. Poche (1913) put Auerbach's classification in better 

 form as follows: 



Order: MjTcosporidia 



2 Superfamily Mictosporea 



2 Family Myxidiidae 



2 Genus Zschokkella 



3 Genite Myxoproteus 



4 Genus Myxidium 



5 Genus Sphaeromyxa 



6 Genus Sphaerospora 



3 Family Chloromyxidae 



7 Genus Chloromyxum 



3 Superfamily Disporea 



4 Family Ceratomyxidae 



8 Genus Ceratomyxa 



9 Genus Leptotheca 



4 Superfamily Polysporea 



5 Family Myzosomatidae (Poche) 



10 Genus Myxosoma 



11 Genus Lentospora 



6 Family Myxobolidae 



12 Genus Myxobolus 



13 Genus Henneguya 



14 Genus Hoferellus 



For the same reason given in discussing Auerbach, this, however, is not 

 conformable with the present state of knowledge regarding these protozoa. 



It was not until 1917 that the classification of the Myxosporidia 

 approached to a more natural state in the valuable work by Davis (1917: 

 219-221). He pointed out sharply the unsatisfactory features in Doflein's 

 classification and proposed a different system as follows: 



Order: Myxosporidia. 



Suborder I Myxosporea Davis 

 Family 1 Ceratomyxidae 



Genus 1 Leptotheca 



Genus 2 CeratomjTca 

 Family 2 Sphaerosporidae Davis 



Genus 1 Myxoproteus 



Genus 2 Sphaerospora 



Genus 3 Sinuolinea 

 Family 3 Myxidiidae 



Genus 1 Myxidiima 



Genus 2 Sphaeromyxa 



Genus 3 Zschokkella 

 Family 4 Chloromyxidae 



Genus 1 Chloromyxum 



