FAMILY Vril. XEISSERIACEAE 



489 



Neutral red glucose broth: Becomes pink, 

 but no further change. 



Strictly anaerobic. 



Temperature relations: Optimum, 37° C. 

 No growth at 28° C. 



Optimum pH, between 7.0 and 8.0. 



Non-pathogenic. 



Distinctive characters: Colonies grow in 

 narrow zone 1 cm below the surface of an 

 agar stab; gas produced from peptones. 



Source: Isolated from bronchial mucus 

 and from elsewhere in the respiratory sys- 

 tem; also from dental and tonsillar}^ focal 

 infections. 



Habitat: Found in the human buccal 

 cavity and probably also in other warm- 

 blooded animals. 



4. Veillonella reniformis (Cottet, 1900) 

 Pelczar, comb. nov. (Diplococcus reniformis 

 Cottet, Compt. rend. Soc. Biol., 52, 1900, 

 421; Micrococcus reniformis Oliver and 

 Wherry, Jour. Inf. Dis., 28, 1921, 341; 

 Neisseria reniformis Prevot, Ann. Sci. Nat., 

 Ser. Bot., 15, 1933, 102.) 



re. ni. for 'mis. L. noun ren kidney; L. 

 noun forma shape; M.L. adj. reniformis 

 kidney-shaped. 



Spheres, 0.8 to 1.0 micron in diameter, 

 bean-shaped, occurring in pairs. Gram- 

 negative. 



Gelatin: No liquefaction. 



Agar deep colonies: Appear in 24 to 48 

 hours; at first punctiform, then lenticular; 

 small, 0.3 to 0.5 mm in diameter. No gas 

 produced. 



Agar slant: Minute, bluish white, dew- 

 drop colonies. 



Broth: Turbid in 24 hours; flocculent 

 precipitate rapidly formed, clearing the 

 medium. No gas produced, but a rancid odor 

 is present. 



Peptone water: Very meager growth. 



Milk: Unchanged. 



Indole produced in trace amounts. 



Coagulated proteins: No digestion. 



Acid from glucose in slight amounts by 

 only one strain. 



Strictly anaerobic. 



Temperature relations: Optimum, 37° C. 

 No growth at 22° C. 



Optimum pH, 7.0. Limits of pH, 6.0 to 8.0. 



Pathogenic. 



Distinctive character: Odor of rancid 

 butter. 



Source: Isolated in several cases from 

 suppurations of the urogenital system. 



Habitat: Presumably found in bodies of 

 warm-blooded animals. 



5. Veillonella orbiculus (Tissier, 1908) 

 Pelczar, comb. nov. {Diplococcus orbiculus 

 Tissier, Ann. Inst. Past., 22, 1908, 204; 

 Neisseria orbiculata (sic) Pr6vot, Ann. Sci. 

 Nat.,S6r. Bot., ./J, 1933,109.) 



or.bi'cu.lus. L. mas. dim. n. orbiculus 

 small disc. 



Spheres, 1.5 to 2.0 microns in diameter, 

 occurring in pairs. Gram-negative. 



Gelatin: No growth at 22° C. 



Agar deep colonies: After 36 to 48 hours, 

 large, lenticular, very regular, whitish, al- 

 most transparent. Gas not produced. 



Broth: Turbid; sediment. 



Milk: No coagulation. 



Egg white: Not attacked. 



Proteoses attacked without the produc- 

 tion of indole. 



Acid from glucose and feebly from lac- 

 tose. No acid from sucrose. 



Strictly anaerobic. 



Temperature relations: Optimum, 37° C. 

 No growth at 22° C. 



Non-pathogenic. 



Distinctive characters: Large size; no gas 

 production. 



Source: Isolated from the feces of young 

 children. 



Habitat: Found in the intestinal canal. 

 Not common. 



6. Veillonella vulvovaginitidis (Reynes, 

 1947) Pelczar, comb. nov. (Neisseria vulvo- 

 vaginitis (sic) Reynes, Ann. Inst. Past., 73, 

 1947, 601.) 



vul.vo.va.gi.ni'ti.dis L. fem.n. vulva a 

 covering, vulva; L. fem.n. vagina vagina; 

 Gr. suffix -itis inflammation of; M.L. noun 

 vulvovaginitidis vulvovaginitis. 



Spheres, about 0.8 to 1.0 micron in di- 

 ameter, occurring in pairs or in very short 

 chains, rarely singly, often in masses of 5 to 

 10 cells. Not encapsulated. Non-motile. 

 Gram-negative. 



Gelatin: Liquefaction. 



