JOURNAL OF MICROSCOPICAL SCIENCE. 
EXPLANATION OF PLATE XIII, 
Figs. 1—6, 
Illustrating Mr. T. B. Lewis’s paper on Nematode 
Heematozoa in the Dog. 
Fig. 1.—Three portions of a mature female Filaria sunguinolenta :— 
a. Anterior portion, the outline of the mouth altered through 
separation of the cuticle by the action of spirit. 
6. Termination of genital tube; the vagina, twisted on itself, 
is seen alongside the intestinal canal immediately be- 
low the junction of the latter with the cesophagus. 
It is distended with ova and divides into the two 
uterine tubes. 
ce. Caudal extremity: the two uterine tubes with cellular con- 
tents, are observed to terminate abruptly in minute 
tubules (the ovarian) which form coils around the 
lower portion of the alimentary canal x 20. 
», 2.—Caudal extremity of the male. Ventral aspect. Two spicules 
are seen of unequal length, with eight pre-anal and four post- 
anal papille x 265. 
», d.—The mouth as seen from the front, with its six minute ‘lips’ and 
chitinous pharynx x 80. 
», 4.—Mature Filaria sanguinolenta found in walls of aorta and esophagus 
of pariah dogs in India: female natural size. 
» 9.—Ditto, ditto, male natural size. 
