2G-I 



THE AMERICAN NATURALIST [Vol. XLYIII 



genus of the two large ones characteristic of the 

 mammals. 



The large order Ungulata, with its numerous domesti- 

 cated and semi-domesticated species, is a favorite host 

 group with both Mallophaga and Anoplura. Altogether 2 

 about thirty Anoplura and two dozen Mallophagan spe- 

 cies are recorded from fifty host species representing nine 

 Ungulate families. 



The family Elephantidae is represented by the African 

 and Indian elephants, recognized as distinct species of 

 distinct geographic range. They both harbor a common 

 Anopluran species, Hcematomyzus elephantis, of species, 

 genus and family peculiar to the elephants. Fahrenholz 

 has given the varietal name sumatranus to specimens of 

 these sucking lice taken from an Indian elephant in 

 Sumatra. Eecords show that the parasites have been 

 taken from their elephant hosts not only in Africa and 

 Asia, but in various zoological gardens, as Paris, Ham- 

 burg and Eotterdam. 



The small family of Hyracidae, or conies, is represented 

 in the host list by two species and perhaps a third one, 

 one of which, the Syrian coney of west and south Asia, 

 harbors one Anopluran and one Mallophagan, while from 

 the other, the Cape coney of South Africa, the same 

 Anopluran species is recorded as well as another of the 

 same genus. This record of a second species is from a 

 coney in the London Zoological Gardens. From the pos- 

 sible third species of Hyrax (taken in the African Congo 

 and perhaps, but not probably, also a Cape coney), a 

 second Mallophagan species is recorded of the same 

 genus, Triehodeetes, to which that of the Syrian coney 

 belongs. 



In the family Equidse three species, the horse, the 

 donkey and Burchell's zebra, all suffer from the infesta- 

 tion of a common Anopluran species, Hcematopinus asini. 

 In addition, the horse and the zebra have a common 



2 The synonomy in the parasite records, and indeed in the host records 

 as well, is a vicious tangle. I have done the best I can, for the present. 



