GENERAL SYSTEMATIC BACTERIOLOGY 311 



Eiimonas. Enlows (1920, p. 42) states: 



Eiimonas: Diesing, 1850. Systema Helminthum v. 1, Vindobonae, 1850, p. 22. 

 Subgenus of Monas Muller and Ehrenberg. Diesing says Manas is synony- 

 mous with Bodo and Bacienwwi Ehrenberg. Eiimonas: Animalculasolitaria libera, 

 corpus ecaudatum, subglobosum, ovatum, v. obconicum, hyalinum v. coloratum, 

 haud mutabile, divisione spontanea simplici bipartitum, v. indivisum. Os 

 terminale truncatum, limbo ciliatum v. nudum. Flagellum nudum oscellus 

 nuUus. Includes 20 species: Monas (Eumonas) crepuscxdum Ehrenberg, M. 

 (Eumonas) hicolor Ehrenberg, M. {Eiimonas) ochracea Ehrenberg, M. (Eumonas) 

 hyalina Ehrenberg, etc. 



Eu-Pacinia. A subgenus of the genus Pacinia Trevisan named by 

 De Toni and Trevisan (1889, p. 1019) to include those species which 

 conform to the follo\\ing diagnosis: "BacuH recti vel raro levissime 

 curvuU, interdum in filamenta recta vel subrecta consociati, Arthro- 

 sporae magnae, quadruplooctuplo et ultra diametri transversalis 

 baculorum latiores," Eleven species are included. It is interesting 

 to note that Pacinia cholerae-asiaticae, the organism upon which the 

 genus Pacinia was founded is not included in this subgenus; in other 

 words, the type species of the genus is apparently regarded by De 

 Toni and Trevisan (1889, p. 1018) as not tj^pical of the genus. A 

 variant of Ewpacinia. 



Eupacinia. The first subgenus of Pacinia (Trevisan 1889, p. 23) . The 

 description is "Filamenti normali di Bacillus.'^ Nine species are in- 

 cluded, but Pacinia cholerae-asiaticae is placed in the second subgenus 

 Pseudospira. 



Euplanococcus. A subgenus of the Planococcus created by Migula 

 (1895, p. 19) to include those forms in which the cell contents are color- 

 less and free from sulphur granules. The second subgenus is Thio- 

 pedia Winogradskj'. 



Euplanosarcina. A subgenus of the genus Planosarcina Migula 

 created b}^ JMigula (1895, p. 20) to include those forms in which the 

 cell contents are colorless and without sulphur granules. The other 

 subgenera are Thiocystis Winogradsky and Lamprocystis Winogradsky. 



Eupseudomonas. A subgenus of the genus Pseudomonas Migula 

 proposed by ^Migula (1895, p. 29) to include those forms in which the 

 cell contents are colorless and without sulphur granules. The second 

 subgenus is Chromatium Perty. 



Eusarcina. A subgenus of the genus Sarcina Goodsir proposed 

 by Migula (1895, p. 18) to include forms in which the cell contents are 

 colorless and free from sulphur granules. The second subgenus is 

 Thiosarcina Winogradsky. 



