122 Book-lice and Bark-lice; Biting Bird-lice 



Mallophaga, has been found only on the guinea-pig. Washing the body of 

 the infested animal with kerosene emulsion (see p. 190) is probably the 

 mos'. effective remedy for biting lice. 



Of the nearly three hundred species of Mallophaga which I have recorded 

 (Proc. Nat. Mus., v. 22, 1899, pp. 39-100) from wild North American birds, 

 mention may be made of the largest, L&mobothnum loomis, taken from the 

 Canada goose; of Docophorus communis (Fig. 152), the most abundant and 

 widely distributed parasite of perching and song birds; of the pretty Nirmus 

 jelix (Fig. 153), with its clean white body and sharply marked black spots; 

 of the fierce-looking Lipeurus ferox, found on albatrosses; and of Ancistrona 

 gigas (Fig. 154), found on fulmars, the broadest of the Mallophaga. 



As there are nearly one thousand different species of North American 

 birds, and Mallophaga have been taken from but two hundred and fifty of 

 them, it is obvious that the collector and student of these parasites has a 

 profitable field open to him. 



