58 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 134 
Blattella germanica, U.S.A. (Steinhaus, 1941): Organism isolated 
from the midintestine. 
Periplaneta americana, England (Shrewsbury and Barson, 1948) : 
Organism cultivated from the alimentary tract. 
Cockroaches (presumably B. orientalis, B. germanica, and/or P. 
aniericana), Egypt (Iel-Kholy and Gohar, 1945) : Organism isolated 
from outer body surfaces, intestines, and suspensions of macerated 
insects. 
Streptococcus liquefaciens Sternberg emend, Orla-Jensen 
Source.—Found in blood in subacute endocarditis. Foul-brood of 
bees. Found in feces, and in dairy and other food products. 
Natural vectors.—Blatta orientalis, Poland (Nicewicz et al., 1946) : 
Organism isolated from alimentary tract. 
Streptococcus pyogenes Rosenbach 
Synonymy.—Streptococeus pyogenes longus; “Streptococco pio- 
gene” of Cao, 
Disease.—Organism occurs in human infections of many varied 
types. 
Natural vectors.—Blatta orientalis, Italy (Cao, 1906): Organism 
isolated from feces; in pure culture it caused only local suppuration in 
guinea pigs or rabbits. 
Experimental vectors.—Cockroaches, U.S.A. (Longfellow, 1913) : 
Organism isolated from legs and viscera. 
Streptococcus sp. (pyogenic group) 
Synonymy.—The exact species used by Jettmar (1935) is not 
known, but he refers to a hemolytic Streptococcus of the beta type. 
According to Breed et al. (1948), such an organism would probably 
fall in the pyogenic group. 
Disease.—Streptococci of the pyogenic group occur in human in- 
fections of many varied types, 
Experimental vectors.—Blatta orientalis, Germany  (Jettmar, 
1935): On the second day after ingesting an infective meal, the cock- 
roaches excreted hemolytic streptococci in their feces. 
Streptococcus sp. (viridans group) 
Synonymy.—The species used by Jettmar (1935) is not known, 
but he refers to a Streptococcus of the alpha type which formed colo- 
nies with green patches on blood agar. According to Breed et al. 
