io6 One Thousand Objects 



855. HEDGEHOG FLEA (Pulex erinacei). Not uncom- 

 mon on the hedgehog. 



856. SQUIRREL FLEA (Pulex sciurorum}. Common on 

 the squirrel, all over Europe. (PI. XII., fig. n.) 



857. BAT FLEA (Pulex vespertilionis) . Found on several 

 species of Bat, especially the Great-eared Bat. Another 

 species (Pulex elongatd) occurs on the Yellow Bat. 



858. RAT FLEA (Pulex fasa'atus).T\ns, as well as 

 Pulex muris, are found on the rat, and sometimes also the 

 Mole Flea 



859. HARE FLEA (Pulex leporis). Found by Curtis on 

 the hare; but apparently not common. 



860. PIGEON FLEA (Pulex columbce). Occurs on the 

 domestic pigeon. 



86 1. Other species of Bird Flea are said to be found 

 on the swallow, the martin, and the starling; which we 

 have never seen. 



862. SLENDER PIGEON LOUSE (Lipeurus bacillus). 

 Long but very slender body; the female about one-fifth 

 larger than the male; the latter distinguished by the an- 

 tennae, of which the third joint is hooked. Common on 

 all kinds of pigeons. (PI. XII., fig. 2.) 



863. ROBUST PIGEON LOUSE (Goniocotes coinpar). 

 About one-twelfth of an inch long, but three times as 

 broad, with a large head, broad and angular behind. 

 Common on all varieties of the pigeon. (PI. XII., fig. 4.) 



864. LONG COOT LOUSE (Lipeurus luridus). Occasion- 

 ally with the more common species, hereafter named, on 

 the coot and water-hen. 



865. LONG TURKEY LOUSE (Lipeurus polytrapczius). 

 Very common about the wing-feathers of the turkey. 



866. SMALL BIRD LOUSE (Docophorus communis). 

 Found on several kinds of small birds, as the bullfinch, 

 bunting, sparrow, and white-throat. 



867. ROOK LOUSE (Docophorus atratus). The most 

 common of the four species found on the rook, this has a 

 large triangular head, the upper portion white, shining, 

 and hairy; the segments of the abdomen with an angular 

 dark-coloured patch on each side. 



