124 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



* Mycobacterium piscium Bergey et al. 



Natural vectors. — Periplaneta americana, U.S.A. (Leibovitz, 1951). 

 Experimental vectors. — Blatta orientalis, U.S.S.R. (Ekzempliar- 

 skaia in Pavlovskii, 1948). 



* Mycobacterium tuberculosis (Schroeter) Lehmann and Neumann 



Experimental vectors. — Blatta orientalis, Italy (Cao, 1898) ; Ger- 

 many (Kiister, 1903) ; U.S.S.R. (Ekzempliarskaia in Pavlovskii, 

 1948). 



Blattella germanica, on shipboard (Morrell, 1911). 



Periplaneta americana, Gold Coast Colony (Macfie, 1922). 



Cockroaches, Venezuela (Tejera, 1926) ; U.S.A. (Read, 1933). 



* Mycobacterium spp. 



Natural vectors. — Periplaneta americana, U.S.A. (Leibovitz, 195 1 ; 

 Micks in Roth and Willis, 1957a). 



Family ACTINOMYCETACEAE 

 *Nocardia sp.? 

 Natural vectors. — Periplaneta americana, U.S.A. (Leibovitz, 1951). 



Family STREPTOMYCETACEAE 



Streptomyces leidynematis Hoffman 



Habitat. — Surface of the nematodes Hammer schmidtiella dicsingi 

 and Leidynema appendiculata in Periplaneta americana, U.S.A. (Hoff- 

 man, 1952, 1953) : Eighteen percent of 192 nematodes found in 52 

 adult cockroaches were infected with the bacterium. 



Order CARYOPHANALES 



Family ARTHROMITACEAE 



Arthromitus intestinalis (Valentin) Peshkoff 



Synonymy. — Hygrocrocis intestinalis. 



Habitat. — Blatta orientalis, Europe (Valentin, 1836; Robin, 1847, 

 1853 ; Peshkoff, 1940) : Isolated from intestinal tract. The organ- 

 ism appears as fragments in fecal masses or as fibers adhering to the 

 mucous membrane of the large intestine (Robin, 1853). 



Cockroach, France? (Chatton and Perard, 1913). 



