322 GENERAL SYSTEMATIC BACTERIOLOGY 



is clear, the casein is slowly digested, the reaction remains acid. In 

 gelatin the colonies are round, liquefied. Egg white is not attacked 

 appreciably. On potatoes a granular layer in twenty-four hours. 

 Starch is rapidly liquefied in the presence of a suitable source of nitro- 

 gen. It attacks albumins, but does not seem to break them down 

 completely. Amylase may be readily demonstrated in filtrate from 

 potato broth culture. With glucose, levulose, maltose, saccharose 

 and lactose it gives an acidity corresponding to 1.2 to 1.47 grams of 

 H2SO4 per liter; in lactose about 0.49 gram. Small amount of alcohol 

 produced. 



The second species Glycobacter peptolyticus resembles the first in 

 digestion of starch, but does not cause proteolysis. 



The genus Glycobacter evidently includes the amylolytic aerobic 

 spore producing organisms usually assigned to the genus Bacillus. 



Gonium. A genus of algae named by Miiller (1773). Ehrenberg 

 assigned to it the species; Gonium hyalinum, one of the bacteria. This 

 organism was removed from this genus by Schroter (1886, p. 151) 

 who gave to it the name Lampropedia hyalina. According to Robin 

 (1847, p. 110), Busk (1843) regarded Sarcina ventriculi as a species 

 of Gonium. The genus Gonium is a valid genus of algae, but not of 

 bacteria. 



Gonococcus. A name first used as a casual designation for the 

 organism which is the specific cause of the disease gonorrhea. The 

 name is usually ascribed to Neisser (1879, p. 497). 



Apparently its use as a generic name has been without formal desig- 

 nation as such. Migula (1896, p. 16) gives Gonococcus gonorrhoeae 

 Neisser as a synonym of his Micrococcus gonorrhoeae. However, 

 examination of the work of Neisser fails to show this designation, it 

 cannot be validated by quotation in synonymy. (See Botanical 

 Code.) 



Lindau (1898, p. 100) named the species Gonococcus neisseri. 



This organism was earlier named Neisseria q.v. by Trevisan. Gono- 

 coccus as a generic designation is a synonym, and must be ascribed to 

 Lindau (?). 



Graciloideae. A name given by Castellani and Chalmers (1919, p. 

 932) to the third tribe of the family Bacillaceae. The description 

 (p. 958) is: 



Bacillaceae growing very slowly and scantily on ordinary and blood media, 

 without endospores or capsules, neither fluorescent nor chromogenic. 

 Type Genus. Graciloides Castellani. 



