i 4 THOMPSON YATES LABORATORIES REPORT 
Life history unknown. The adults occur in pairs in subcutaneous tumours, 
the purulent contents of which swarm with embryos. These are 0*25 mm. long, 
by 0-005 mm - broad, have a rounded head, sometimes a double tip. Their tails are 
sharp and granular. They have no sheath. In stained specimens a V-shaped spot 
can be made out at the junction of the anterior fifth with the posterior four-fifths. 
Filaria labialis. Pane 
The female only is known. It is about 40 mm. long, slender, tapering at each 
end, but slightly swollen at the extreme posterior end. The mouth is surrounded 
by four papillae. The anus is at 0*5 mm. distance from the posterior end, while the 
vulva opens at 2*5 mm. more anteriorly. The uterus is double. 
Life history unknown. A single specimen only has been seen in a small 
pustule on the inner side of the upper lip. 
Filaria hominis oris. Leidy 
Length 140 cm., breadth o - i6 mm. A filiform, opaque white worm, with a 
simple round mouth, and blunt tail furnished with a short hook 50 m in length and 
1 2 p. across at the base. 
Life history unknown. A single specimen has been found in the mouth of a 
child. It is thought by Leidy and Leuchart to be an immature F. medinensis. 
Filaria lymphatica. Treutler 
Syn. Haemularia lymphatica, Treutler ; F. hominus bronchia/is, Rudolphi. 
Length, 26 mm. ; brownish in colour, speckled with white, almost transparent 
posteriorly. Body filiform, a little compressed laterally. 
Life history unknown. Found in hypertrophied lymphatic glands. Diesing 
and Weinland regard it as identical with Strongylus longevaginatus {paradoxus). 
Railliet suggests it as a male F. inermis. 
Filaria restiformis. Leidy 
A single specimen only found, passed per urethram. Length, 65 cm. ; 
breadth, 1*5 mm. Long, uniformly cylindrical body. Cuticle smooth, no transverse 
striation ; head end tapering somewhat, rounded, no appendages. Caudal end 
incurved, no appendages. No apparent anal or genital aperture. Railliet considers 
this a pseudo-parasite. 
Some Filariae which are Parasites of Animals 
Filaria equina. Abildgaard 
Syn. Gordius equinus, Abildgaard ; F. equi, Gmelin ; F. papulosa, Rudolphi ; 
F. equina, Blanchard. 
A whitish filiform worm tapering towards the extremities especially posteriorly. 
Cuticle finely striated transversely. Mouth small, round, provided with a chitinous 
ring, the edge ot which has laterally two crescentic lips, and at a point corresponding 
