No. 569] ECTOPARASITES OF MAMMALS 261 



"Oatalogus Mammalium" as an authority for the synon- 

 omy of the hosts, and my own judgment, based on a con- 

 siderable personal knowledge of the parasites and on a 

 careful consideration of all the more intelligible litera- 

 ture of the two groups, as a last court for the synonomy 

 of the Mallophaga and Anoplura species. The synonomy 

 of the parasites I have, however, not pushed far. 



With so much of introduction and explanation we may 

 come to a swift resume of the results of a scrutiny of 

 these records, proceeding by sequence of the mammalian 

 orders, and referring to either or both groups of para- 

 sites as they may happen to be represented in the para- 

 site records of the successive host groups. 



II 



The Marsupialia are represented in the host list by 

 half a dozen species of kangaroos and wallabies (family 

 Macropidae) all from Australia, and a wombat, Phasco- 

 lomys ursinus (family Phalangeridaa), from Tasmania 

 (also S. Australia?). From all of these hosts only Mallo- 

 phaga are recorded, no Anoplura having yet been taken 

 from a marsupial. The six species of kangaroos repre- 

 sent three genera (Macropus, Petrogale and JEprym- 

 nus), and their Mallophaga are of seven species, repre- 

 senting four genera. Four of the species belong to the 

 genus Boopia, and I strongly suspect are not all different. 

 In addition there is one Trichodectes, from Petrogale 

 penicillata, one Latumcephalum, from "wallabies," and 

 one Heterodoxus, which is recorded from Macropus 

 giganteus in Australia as well as from the same host in 

 the Jardin des Plantes, Paris. It is also recorded from 

 an undetermined wallaby in Victoria and one in Queens- 

 land, as well as appearing in three other records from 

 " kangaroo" or "wallaby" from Australia. The para- 

 site of the wombat is a species of Boopia, and it has been 

 twice recorded from the same host. It is interesting that 

 the kangaroo in the Jardin des Plantes harbored, even 

 after some period of captivity, only its own proper para- 



