DESCRIPTIONS AND DETERMINATIONS OF SPECIES 6? 



Heterodoxus longitarsus (Piaget). 



Menopon longitarsus Piaget, Les Pediculines, p. 504, pi. 41, fig. 7, (1880). 

 Heterodoxus macropus Le Souef & Bullen, Victorian Nat., vol. 18, p. 159, (1902). 

 Menopon spiniger Enderlein, Anopluren u. Mallophagen, Schultz, Forschungsreise in 



Siidafrika; Jenais. Denkschr., vol. 14, pp. 80-81, (1909). 

 Heterodoxus longitarsus Neumann, Arch, de Parisitologie, vol. 15, p. 634, (1913). 



This species was originally described from a species of kangaroo, 

 and there are several other records of its occurrence upon kangaroos. 

 Yet it has also been recorded from the domestic dog, once from Africa, 

 once from Formosa and once from California. However, it is extremely 

 probable that kangaroos are its normal hosts and the other records are 

 due to straggling from kangaroos in museums and zoological gardens, 

 for it certainly is not of common occurrence upon dogs. 



Note. — While this paper is passing through the press we have received nu- 

 merous specimens of H. longitarsus taken from a dog at San Francisco, Calif. 



