GENERAL SYSTEMATIC BACTERIOLOGY 487 



Faden konnen gerade, wellig gebogen, und schraubiggewunden sein." 

 The genus is regarded in part as a synonjin of Spirillum by De Toni 

 and Trevisan (1889, p. 1006). Sternberg (1892, p. 18) ascribed the 

 genus to Hueppe, and defined it as follows: "The vegetative cells are 

 sometimes rod-shaped and sometimes spiral; in suitable media they 

 may grow out into long, straight, wavj' or spiral filaments. These 

 filaments may break up into cocci-like reproductive elements — 'arthro- 

 spores'." This bacterial genus is also accepted by Bamngarten (1900, 

 p. 128). 



The genus SpiruUna is at present generally recognized bj^ algolo- 

 gists as a valid genus of the blue green algae. Its use for a genus of 

 bacteria is therefore invalid. 



Sporonema. A genus of bacteria named by Perty (1852, p. 181). 

 He gave as a diagnosis of the genus, "Ein aussert kleiner cj'lindrischer 

 ungegliedeter, hohler Faden schliesst an einem Ende (selten an beiden) 

 ein, manchmal auch zwei elliptische Korperchen (wohl Sporen) ein." 

 The species was named Sp. gracile. The organism was so incompletely 

 described that it has not since been recognized with certainty. The 

 genus has not been used by subsequent authors, as Migula (1892, 1, 

 p. 7). 



This name had previously been used by Desmazieres (1851, p. 319) 

 to designate a genus of Discoynyceies, now included usually underPeziza, 

 and is invalid as a bacterial designation. 



Sporosarcina. A genus of bacteria proposed by Orla- Jensen (1909, 

 p. 477) to include spore bearing packet cocci. No species are named. 

 He says: "^Mit demselben Recht, wie man die Gattung Bacillus 

 aufstellt, kann man auch die Gattungen Sporospinllum und Sporo- 

 sarcina aufstellen, und eigentlich ist es inkonsequent, es nicht zu tun." 



Sporospirillum. A name proposed by Orla-Jensen (1909, p. 340) 

 to include the spiral bacteria which produce spores. As a rule these 

 • forms are stated not to require organic sources of nitrogen. No species 

 are named. He says: "Mit demselben Recht, wie man die Gattung 

 Bacillus aufstellt, kann man auch die Gattungen Sporospirillum und 

 Sporosarcina aufstellen, und eigentlich ist es inkonsequent, es nicht 

 zu tun." 



Staphylococcus. Ogston (1883, p. 27) first used this name to desig- 

 nate cocci, observ'ed microscopicall}- in pus, in which the cells were 

 irregularly arranged in grape-like clusters. No species name was 

 given by Ogston, the genus should not therefore be credited to him. 

 Rosenbach (1884, p. 19) cultivated two organisms from pus, which he 



