GENERAL SYSTEMATIC BACTERIOLOGY 519* 



Migula (1900, p. 399) gives an incorrect reference to the name Ulvina 

 (Kuetzing 1837, p. 385). 



The name has not been used by recent writers. It is rejected by 

 E. F. Smith (1905, p. 174). 



It is probable that Ulvina has priority as a separate generic name 

 for the acetic acid bacteria. However, the author of the name un- 

 doubtedly was dealing with mixed cultures of such a nature that a 

 reasonably certain identification of his species (type) Ulvina aceti 

 is probably not practicable. To eliminate this difficulty, Winslow ei al. 

 (Committee Soc. Am. Bact., 1917) have accepted the later name 

 Acetobacter. 



Umbina. According to Migula (1897, p. 10) this name was used 

 by Naegeli (1848) (should read 1849) in the combination Umbina 

 aceti for the organism forming mother of vinegar. 



An examination of Naegeli's work shows no use of this name, but 

 instead (p. 5) a statement that Ulvina belongs with the unicellular 

 fungi and not the algae. 



In 1857 (p. 760) he includes Umbina aceti with Nosema, Bacterium, 

 Vibrio, Spirillum Hygrocrocis and Sardna in his new group, 

 Schizomycetes. He says: "Umbina aceti die Essigmutter, ist mit 

 Nosema sehr verwandt, jedoch fallen die Zellen nicht auseinander, 

 sondern bleiben vereinigt." 



Umbina is a synonym of the older Mycoderma and Ulvina. 



Urobacillus. A physiological genus proposed by Miquel (1889, 

 p. 517) for certain rod shaped bacteria found in decomposing urine. 

 The species described by Miquel were for the most part spore-bearing 

 motile rods. The first species described is Urobacillus Pasteurii and 

 may be designated (Enlows, 1920, p. 96) as the type. 



The name has not apparently been recognized by many authors as 

 a true generic designation. It is used by Beijerinck (1901, p. 40) 

 also (1902, p. 30). It is rejected by E. F. Smith (1905) as invahd. 

 It is proposed as the third genus of the family Alkalibacteriaceae by 

 Orla-Jensen (1909, p. 339). He says, 



Einen besonderen Zweig der aeroben Bacillen bildet die Gattung Urobacillus . 

 Diese ist jedoch ohne Zweifel desselben Ursprungs wie die Gattung Bacillus; 

 denn die meisten Proteus Bakterien (auch Lb. prodigiosum) hydrolysieren den 

 Hamstoff. Diese Fahigkeit wird auch bei einzelnen Coli-Arten, vielen Kokken 

 und den meisten anaeroben Faulnisbakterien angetroffen und kann deshalb nicht 

 fur sich allein als ein Gattungsmerkmal dienen. Eine Urobakterie ist erst dann 

 typisch, wenn sie sich derart an die durch die Hydrolyse des Harnstoffes hervor- 

 gerufene hohe Alkalitiit gewohnt hat, dasz sie fiir die gewohnlichen Nahrsubstrate 



