Streptococcus Mucosus 327 



again later by Schottmiiller* from a case of parametritis, peri- 

 tonitis, meningitis, and phlebitis. 



It occurs as a rounded coccus in pairs and in short chains, though 

 sometimes long chains of a hundred have been observed. The pairs 

 resemble gonococci. They measure 1.25 to 1.75 /t in length and 

 0.5 to o.'7S n in breadth. Each is surrounded by a halo that varies 

 in width from 1.5 to 3.0 m, which shows best in cultures grown on 

 human blood-serum. The usual capsule stains fail to color this halo 

 when the organisms are from artificial cultures, though they show 

 it well when they are in pus. The organisms stain with ordinary 

 dyes and by Gram's method. 



The cultures resemble those of Streptococcus pyogenes, but the 

 organism ferriients inulin, which made Hiss think it related to the 



^ / 



.^' 





Fig. 107. — Streptococcus mucosus, from peritoneal exudate. X 1200 

 (Howard and Perkins, in "Journal of Medical Research"). 



pneumococcus. It is now generally believed to correspond to type 

 III of the pneumococci (q.v.). 



Streptococcus Erysipelatis (Fehleisen) 



The streptococcus of Rosenbach is generally thought to be iden- 

 tical with a streptococcus described by Fehleisen f as Streptococcus 

 erysipelatis. 



The streptococcus of erysipelas can be obtained in almost pure 

 culture from the serum which oozes from a pxmcture made in the 

 margin of an erysipelatous patch. They are small cocci, usually 

 forming chains of from six to ten individuals, but sometimes reach- 

 ing a hundred or more in number. Occasionally the chains occur 

 in tangled masses. 



* "Miinch. med. Wochenschrift," 1903, xxi. 



t "Verhandlungen der Wurzburger med. Gesellschaft," 1881. 



