306 
A NEW TROMBIDIUM : OTTONIA IGNOTA n. sp> 
C. F. GEORGE, M.R.C.S., 
Kirton-inLindsey . 
This is one of those handsome Tronibidii in which the colour 
is deepest in the papillae, hence some of this remains even after 
mounting in Balsam. It is difficult to point out any one 
constant anatomical difference whereby it can be easily recog- 
nized. It is of moderate 
size, the length 235 m.m., 
the width at the widest 
part 1 '50 m.m., the pos- 
terior end of the body is 
rounded, not emarginate, 
the position of the anterior 
part of the crista is con- 
spicuous in consequence 
of the arrangement of the 
papillae in a circular form. 
Its minute anatomy is, 
however, rather difficult to 
make out for the same 
reason, and I have not dis- 
sected it. I have, however, 
observed the two stigmata 
with their protecting hairs 
so often found in this por- 
tion of the crista. The 
eyes are very prominent 
on each side of the cephalo- 
thorax, each having two- 
ocelli. The papillae or hairs 
on the back and sides are 
most remarkable, consist- 
ing of an inverted cone 
with stalk at the apex, the 
outer and upper edge 
fringed with minute hairs. 
Some of the papillae appear 
a. — ottonia igaota n. sp. to be barrel shaped. Mr. 
b, c, d.— P apilla;. Soar has drawn three pap- 
illae, enlarged ; their aver- 
age length is about C04 m.m. The mite, of which only one 
example was seen, was found by Mr. Wm. Falconer amongst 
the debris at the roots of Calluna on the summit of Holme 
Moss, S.W. Yorks., at an elevation of 1750 feet, on the 13th 
June, 1914. 
Naturalist, 
