44 
THE LOUSE OF THE LLAMA. 
(Trichodectes breviceps Eudow.) 
In some parts of South America the llama is a very important domes- 
tic animal, and consequently this parasite has a place with the other 
species included in this work. 
This species was described by Eudow in 1866, but as we have not 
seen specimens we must leave it with the mere mention. It is said to 
be one millimetre in length and doubtless agrees closely with the other 
species of the genus in appearance. 
THE LOUSE OF THE GOAT. 
(Trichodectes climax Nitzsch.) 
Since this species was described by Nitzsch in the early part of the 
present century, it does not seem to have received very frequent no- 
tice and Denny does not appear to have found it in England. We have 
as yet not found it in this country, and though it doubtless occurs occa- 
sionally among the goats kept here would seem to be rather rare. 
It is described as having the head wider than long, quadrangular in 
shape, and the body in the female nearly two thirds as wide as long, 
the length being about 1£ millimetres. 
The Trichodectes caprce of Gurlt is considered by Piaget as identical 
with climax, while the Tr. caprce of Packard is not mentioned by him, 
but Professor Verrill has expressed the opinion that it is equivalent to 
limbatus, mention of which follows. It may be stated here, however, 
that the figure giren by Packard agrees well with Piaget's figure of 
climax. It may be that all of these are but varieties of one species. 
(Trichodectes limbatus Gervais.) 
This species is referred to the Angora Goat, and is recognized as a dis- 
tinct species by Giebel, Piaget, and others. It is the species to which 
Professor Yerrill thinks Dr. Packard's caprce belougs. Dr. Packard 
does not state upon which species of goat he found his specimens, 
but it is probable that they were from the common species, and if so, 
and inasmuch as his figure agrees fairly well with climax, it would seem 
as likely to belong there. 
In a recent bulletin from the Bureau of Auimal Industry, Dr. Cooper 
Curtice describes these forms and endeavors to establish their specific 
identity. The principal points urged are a proportional difference in 
size between males and females, a difference in markings, and difference 
in size of eggs, but these are all variable and the differences, as shown 
in the excellent figures accompanying the report, are so slight that we 
are the more impressed with the view that they are the same, and unless 
it be shown that they do not interbreed nor survive if changed from one 
host to the other we should be inclined to use the two names as synonyms. 
