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THE AMEBIC AN NATURALIST [Vol. XLVIII 



the other, called H. lyriocephalus, is recorded from L. 

 timidus and L. europceus. But Neumann, an exception- 

 ally experienced student of the Anoplura, holds that the 

 two species are one. A deer-infesting Mallophagan, Tri- 

 chodectes tibialis, certainly a straggler, has been recorded 

 from Lepus europceus, and another Trichodectes (a very 

 old and uncertain record) from Lepus cannabinus. 



The order Insectivora is represented by but two spe- 

 cies, the mole, Scalops argentatus, of North America, 

 and the shrew, Sorex araneus of Europe and Asia. Each 

 harbors an Anopluran species, that of the mole being a 

 curiously modified form and of species and genus peculiar 

 to its host, while that of the shrew is of a species not 

 found on other hosts. 



The order Prosimiae, the lemurs, presents a single 

 record, that of a species of Mallophagan, Trichodectes 

 mjobergi Stobbe, described from the North Bornean 

 Nucticebus bonieanus (family Xycticebidae). 



The order Primates is represented in the host list by 

 four families, the Cebidse of the New World, the Cerco- 

 pithecida?, the single family of apes, Simiidte, of the Old 

 World, and the family of man, Hominidae. The distribu- 

 tion of the ectoparasites of these groups is of unusual 

 interest to the special student and will likely prove equally 

 so to more general students. 



The Cebidae, platyrrhine, tailed, New World monkeys, 

 are represented by two species, the spider monkey and 

 one of the howling monkeys of Brazil, members of differ- 

 ent genera, each with a Trichodectes species peculiar to 

 it. In addition three species of Ateles, one of Mexico and 

 Central America, another of Guiana and Brazil, and the 

 third an undetermined species of the genus represented 

 by a specimen in a traveling menagerie in Europe, have 

 yielded three species of the Anopluran genus Pedioulus. 

 otherwise characteristic of man and the anthropoid apes. 

 These three Pediculus species have been recorded and de- 

 scribed by three different students of the group, all careful 

 workers, and there can be no doubt of the generic refer- 

 ence. But it is to be noted that the specimens of all three 



