The Philippine journal of science. [Vol. 57, no. 1]

260 The Philippine Journal of Science 135
larger than oral sucker, 0.09 by 0.08 mm, postequatorial and
median; ovary roundish, 0.075 to 0.080 by 0.06 to 0.065 mm,
anterolateral to acetabulum; uterine coils fill posterior half of
body; vitellaria consist of coarse follicles, 0.060 by 0.040 mm;
testes ovoid, 0.105 by 0.070 mm, removed considerably from posterior extremity, on same level; seminal vesicle anterior to acetabulum, consisting of three saculations separated from each
other by short tubes; genital sac separate and independent from
acetabulum, to the right of the latter and housing mushroomlike
gonotyl crowned with a circlet of rodlets; excretory vesicle
horseshoe-shaped; eggs, 0.016 by 0.010 mm.
Host.-Man, native of La Union Province, Philippine Islands.
Location.-Small intestine.
Locality.-Manila, Philippine Islands (?).
Type specimen.-Parasitological collection, School of Hygiene
and Public Health, University of the Philippines.
Remarks.-Compared with the established members of the
genus Heterophyes, this fluke differs from any one of them as
will be noted in our comparative table in the length of the intestines, in the position of the ovary and seminal vesicle, in the
size of the vitelline follicles, in the form of the excretory vesicle,
and the distance of the testes from the posterior end of the
body. We name this new human heterophyid Heterophyes brevicteca on account of its short intestines.
STICTODORA MANILENSIS sp. nov. Plate 2, figs. 1 to 3.
Nineteen specimens of this fluke were obtained from the small
intestines of two Manila street dogs.
Body small, 1.31 mm by 0.32 mm, oblong, all the reproductive
organs contained in the enlarged posterior portion; cuticle spinous; oral sucker subterminal, 0.05 to 0.06 mm, prepharynx
long, pharynx ovoid, 0.03 to 0.0.4 mm, oesophagus short, intestine
simple tubes extending to the posterior end of the body. Ventral sucker present but rudimentary, incorporated with the genital sac at its anterior wall.
Female organs.-Ovary round, 0.095 by 0.080 mm, in front of
the right testes; receptaculum seminis between the testes;
uterine coils fill the posterior half of the body; vitellaria consist
of rather small follicles arranged in transverse rows in the hind
fourth of the body.
Male organs.-Testes transversely oval, obliquely one behind
the other in third fourth of the body, posterior testes being slightly larger, 0.090 by 0.072 mm, than anterior, 0.062 by 0.061 mm;