780 ANIMAL PAKASITIC SKIN DISEASES. 



attribute this haemorrhage to these intruders, although, by a 

 careful search, I was unable in any case to satisfy myself that 

 such was the cause of the lesions. There were no elevations of 

 the skin — ' houtons hemorragiqiies' — the parts being perfectly 

 smooth ; and when carefully denuded of the hair, two or three 

 minute points could be observed from which blood oozed. 



As I have only observed this particular haemorrhage in 

 Hungarian horses, and chiefly in those the first year of their 

 residence in this country, and from what we are told regarding 

 it by observers in Central Europe, where it seems not an un- 

 common occurrence, also from the fact that it is not kept up 

 but disappears after a residence here, it seems highly probable 

 that it is the direct result of cutaneous parasitism. Still I have 

 been informed by trustworthy observers that a like haemor- 

 rhage is occasionally observed in home-bred animals ; this I am 

 unable to corroborate. 



In the management of this lesion treatment seems to have 

 little influence ; while, with certain reservations, the animal's 

 poAvers of Avork-doing do not seem impaired. When not appear- 

 ing under the saddle or collar, the small amount of blood which 

 is discharged may be sponged off, and the horse put to his 

 usual work; when the bleeding occurs where the harness 

 rests, if the pressure is continued, there is the liability to the 

 j)roduction of an open sore. 



Phthiriasis — Lousiness. 



Horses are liable to a disturbed condition of the skin from 

 the residence there of at least three species or varieties of what 

 are ordinarily known as lice. Two of these are individuals 

 of separate families of the same order of the class Insecta, and 

 the third is an accidental visitant, received from cohabitation 

 with poultry. 



Of the two former, more commonly recognised as lice, one, 

 the Hmmiatopinus cqiii, is the proper pediculus, and a true 

 blood-sucker ; the other, tlie Tricluxhck's equi, lives amongst 

 the hair and on the skin, irritating by its presence, not finding 

 its food-supply from the blood direct, but in the exuvia of the 

 structures. Of these, the former is the more irritating, and is 

 easily enough distinguished from the Trkhodectes by its narrow 

 and distinct thorax, bearing three pairs of legs, and the 



