GENERAL SYSTEMATIC BACTERIOLOGY 341 



777). A second species is Lactococcus hollandiae Weigmann. The 

 genus is discussed by Stockhausen (1907,. p. 164). Beijerinck later 

 (1908, p. 641) named a third species, Lactococcus agglutinans, a form 

 previously described by Barendrecht as Leuconostoc agglutinans (1901, 

 p. 623). The genus is also recognized by Kossowicz (1912, p. 94). 

 It is probable that this genus is to be regarded as a synonym of Strep- 

 tococcus. 



The type species is Lactococcus lactis Beijerinck. Tf the milk cocci 

 are to be separated from the pathogenic forms of the genus Streptococcus 

 this would appear to be a valid genus. 



Lactosarcina. A generic name used by Beijerinck (1908, p. 359) 

 for sarcinae which produce lactic acid. He concluded that the Sarcina 

 ventriculi produces sufficient lactic acid in milk to justify its inclusion 

 in this genus. 



This name has apparently not been used by other writers, and is 

 probably to be regarded as a synonym of Sarcina Goodsir. 



Lampozoidia. The subdivision of the protozoa created by Perty 

 (1852, p. 179) to include the form now know as bacteria (among others). 

 The definition of the group is as follows: 



Farblos seltener blau, gelb, rothlich (nicht griin) gefarbt, ohne specifische 

 Organe, kaum mit einer Spur von Differenzirung ihrer Substanz. Bewegung 

 scheinbar willkiihrlich, in Wahrheit automatisch. Vermehrea sich durch Qusr- 

 theilung und stellen so Ketten und Fiiden dar. 



Lamprocystaceae. A subfamily of the sulphur bacteria named by 

 Migula (1900, p. 1043). The diagnosis is as follows: "Zellen zu 

 Familien vereinigt. Teilung der Zellen zuerst nach 3, dann nach 

 2 Richtungen des Raumes." This subfamily contains the single 

 genus Lamprocystis. The subfamily is again recognized by Migula 

 (1904, p. 146) by Erwin F. Smith (1905, p. 163) and by Frost (1911, 

 p. 61). 



Lamprocysteae. A name proposed by Buchanan (1918, p. 467) for a 

 tribe of sulphur bacteria containing the single genus Lamprocystis. 

 The definition is: "Cells united into families in which division of the 

 cells occur first in three planes, then in two." 



This designation is used by Bergey et al. (1923, p. 297) in the same 

 sense. 



Lamprocystis. A generic name proposed by Schroeter (1886, p. 

 151) to replace the invalid Cohnia Winter (q.v.). He gives the follow- 

 ing generic description: 



