208 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. I4I 



HELMINTHS WHOSE EGGS HAVE BEEN CARRIED BY 

 COCKROACHES 



The use of the asterisk (*) is explained in footnote 3, page 4. 



Phylum PLATYHELMINTHES 



Class TREMATODA 



Order DIGENEA 



Family SCHISTOSOMATIDAE 



* Schistosoma haematobium (Bilharz, 1852) Weinland, 1858 



Experimental vector. — Periplaneta americana. Gold Coast Colony 

 (Macfie, 1922). 



Class CESTODA 



Order TAENIOIDEA 



Family HYMENOLEPIDIDAE 



* Hymenolepis sp. 



Natural vectors. — Periplaneta americana, Formosa (Morischita and 

 Tsuchimochi, 1926). 



Polyphaga saussurei, Tadzhikistan (Zmeev, 1936). 



Family TAENIIDAE 



♦Taenia saginata Goeze, 1782 



Experimental vector. — Periplaneta americana, Gold Coast Colony 

 (Macfie, 1922). 



Echinococcus granulosis (Batsch, 1786) Rudolphi, 1805 



Synonymy. — Taenia echinococcus (Zeder, 1803) [Faust, 1939]. 



Experimental vector. — Periplaneta americana, Uruguay (Perez 

 Fontana, 1955) : Eggs were recovered from the feces of artificially 

 infested cockroaches under "natural" conditions. 



Family Unknown 

 ♦Undetermined tapeworm ova 

 Natural vector. — Polyphaga saussurei, Tadzhikistan (Zmeev, 1936). 



