SiBTHORPE — On Filaria sanguinis hominis. 205 
visible in various places ; it is difficult to be sure of the exact position 
of the anus; it appears to be sub- terminal. Immediately in front of 
the anus are a pair of spicula; these are shown in fig. 2, s., in their 
normal position ; as a matter of fact only one remains in situ in the 
specimen ; the other has been displaced in the mounting. The single 
spicule remaining in situ is shown in fig. 3. The proximal extremity 
is broad, while the distal extremity is capillary, but, while in situ, the 
spicula is bent upon itself, as shown in the figure. That this is 
the actual arrangement is shown by the appearance of the spicule 
which has been displaced (fig. 4), as it has become straightened out. 
^Whether the spicules ever become straightened out during life it is 
impossible to say, probably not, but the arrangement is peculiar, and, 
as far as I am able to tell from the literature at command, unlike that 
obtaining in the spicula of any other nematoid. 
It is, however, dangerous to formulate specific characters upon the 
3xamination of a single specimen, especially when that has been 
tsomewhat injured. The microscopical specimens and these drawings 
were exhibited before a meeting of the South Indian Branch of the 
'British Medical Association in Madras, in June, 1888, and before the 
Pathological Section of the British Medical Association at Glasgow, 
fL August, 1888. 
DESCRIPTION^ OF PLATE XIV. 
: ElLAEIA SANGUINIS HOMINIS. DrAWN BY PnOEESSOU A. G. BoUENE. 
ii'ig. 1. — Anterior portion of female: — 
m. mouth ; ph. pharynx; ff.p. genital aperture ; x. enigmatic body; 
a. broken extremity. 
"ig. 2. — Posterior portion of male : — 
a. Broken extremity ; /. testicular products showing through the 
cuticle ; b. caudal extremity (? anus) ; s. spicula. 
'ig. 3. — Caudal region of same specimen — one of the spicula is drawn in situ : — 
a. The free extremity, 
'ig. 4. — The other spiculum from the same specimen which became dislodged 
during manipulation : — 
a. The portion which becomes the free extremity when the spicule is 
in situ. 
E.I.A. PROC, SER. III., VOL. I. Q 
