336 
The Genus Ixodes 
previously described as pratti from one of Banks’ specimens. Bisbopp 
stated that Banks confused two species: I. pratti and I. kingi. In a 
review of Ticks , Part n. written subsequently by Bisbopp (xn. 1911, 
p. 565) the latter states that our description of pratti Banks $ is clearly 
that of kingi Bisbopp ?; that Banks’ purported $ pratti was I. ricinus var. 
scapularis <J, leaving still a third species tbe true pratti Banks $. Bisbopp 
observes that “consequently Nuttall and Warburton’s description of 
neither sex applies to Ixodes pratti .” In making this statement, 
Bisbopp is wrong in saying that we described the purported jnatti $. 
It is clear that there has been confusion, but the validity of Bisbopp’s 
species must remain in doubt until tbe true relation of tbe specimens is 
made clear. If, as it appears, Bishop found three species in Banks’ 
type material of I. pratti, it is for him to give tbe full illustrated descrip¬ 
tion of pratti and kingi. We should like to know bow Bishopp decided 
which was which. If we accept bis opinion, then tbe true pratti has 
never been adequately described. 
Finally I should like to know bow tbe matter stands in relation to 
tbe priority of names. If (1) Banks confused three species in bis de¬ 
scription and figures but (2) nevertheless sent us a specimen which he 
recognized as I. pratti and (3) we described it as I. pratti Banks 1908, 
does not this name, published in May 1911, invalidate the name 
I. kingi Bishopp, published in June 1911? Perhaps Messrs Banks and 
Bishopp will help me to clear up the point. 
What we described as Ixodes pratti Banks $ occurs also in Canada, 
for we have determined (N. 1377) 1 $ from dog, Milk River, Alberta, 
vii. 1911, A. Watson coll., gift of Dr S. Hadwen. 
7. List of new species and varieties of Ixodes and of species 
NOT HITHERTO RECOGNIZED OR INCLUDED IN T/CXS, PART II. 
The following list of species supplements the one given in the Index 
to Ticks, Part ii. ; the two lists comprise all the known species of Ixodes. 
The new species described in this paper are included in the following 
list. 
Ixodes 
alluaudi Neumann 1913, <J, from German East Africa (Neumann, 1913, pp. 26-28, 
Figs. 1, 2). 
anatis Chilton 1904, $ O, from duck. New Zealand, redescribed in this paper, p. 317. 
angustus var. woodi Bishopp 1911, 2, from woodrat, Neotoma micropus, Texas 
(Bishopp, 1911, p. 205, PI. II, fig. 13). 
