Ae ON PEU REA 
15. Subulura otolicini (van Beneden 
1890) Railliet & Henry, 1913. (1). 
Plate V. figs. 3, 4, 5, 6. 7, 8, and 9. 
Dimensions : 
d Length: 8 mm.; width 0,4 mm. 
© Length: 12,5 to 16,6 mm.; width: 0,64 
to 9,65 mm. 
Body cylindroid, stretched at extremities 
more at the back than the front, whitish. 
On the tegument very fine, transversal stria- 
tions. Head slightly dilated and rounded in 
the front: at ihe apex a round capacious 
mouth, 35 to 45 micra in diameter; lips not 
distinct, but surrounded by six cephalic 
papillae; two lateral which are more vo- 
luminous and four sub-median ones; the 
mouth leads to a buccal cavity or vestibule 
56 micra deep and 64 micra wide; in this are 
three chitinous teeth round the entrance to 
oesophagus. The latter measures 1,2 to 1,3 
in length and is club-shaped; the posterior 
part is so dilated that its diameter is about 
three times that of the anterior part and forms 
a bulb with triturating apparatus which 
is in continuity with the rest of the oeso- 
phagus. Nerve collar surrounding the oeso- 
phagus a little behind a fourth of the ante- 
rior part. 
Male: Dimensions: 8 mm. length, greatest 
width 0,4 mm. Oesophagus as long as 2/13 | 
of whole length. Cloaca opening at 255 mi- 
cra from tail end; tail end with two slightly 
developed lateral expansions; tail short, conic, 
lengthened by a 95 micra long appendix. 
In front of the cloaca, at a distance of 
about 480 micra, is a sucker with lengthened 
cleft, not bordered with chitin and measuring 
more or less, 160 micra. The ventral surface 
has 11 pairs of papillae, of which 3 pre-anal 
pairs the first being situated by the side of 
the anterior extremity 
The two spicules are equal, measuring about 
1,8 mm. in lenghth and 28 micra in thickness ; 
the anterior extremity slightly widenened; the 
posterior extremity ending in a point; spicu- 
les transversally striated in entire length 
Note 1. We transcribe the description by Godoelst. 
of pre-anal sucker. | 
accompanied by an accessory piece or gu- 
bernaculum, which measures 225 micra in 
length; with edges curved like gutters ending 
in a point behind; the genital tube extends to 
3,3 mm. of anterior extremity. 
Female: Dimensions 12,5 to 16,6 mm. in 
length, greatest thickness 0,64 to 0,65 mm. 
Oesophagus a little more than 110 of whole 
length. The anal orifice 1,4 mm. from tail 
end, tail 1/11 of the length of the body, 
long, conic, ending in sharp point, like that 
of the male. Vulva not salient, opening in 
the middle of the body, which it divides 
in the proportion of 7:9 coils of the genital 
tubes extending from 200—270 micra behind 
the bulb of the oesophagus to 500 behind 
the anus. The eggs are sub-globulose or el- 
lipsoid and measure about 6650 micra; 
shell fine, smooth; when emitted the eggs 
contain embryos. 
Habitat: intestine of 
Galago (G) galago Schreber. 
Galago Hemigalago demidoffi Fischer. 
Galago mossambicus Peters. 
Geographical distribution; Africa (Guinea 
Kikondja). 
16. Subulura differens (Sonsino, 1890) 
Railliet & Henry, 1913. 
Plate II, figs. 8, Plate &, fig. 5. 
Dimensions: 
3 Length: 8,6 mm.; width; 0,282 mm. 
Q Length: 11,3 to 12,5 mm; width; 
0,334 mm. at the height of vulva. 
Body rectilinear, dirty yellowish colour; 
some specimens almost black, perhaps on 
account of the action of the preserving fluid. 
Anterior part conical, slightly deviatied 
| towards the dorsal surface; caudal part gra- 
| dually tapering, ending in a small chitinous 
appendix, straight in the female, spirally cur- 
ved in the male. Cuticle thin, with fine trans- 
versal striations in the superficial layer. La- 
teral expansions well developed, extending 
from cephalic extremity to the anterior 1/5 
of intestine; greatest width 0,022 mm. Nerve 
collar on the anterior third part of oesopha- 
gus. Excretory pore on ventral surface, a litle 
beyond the nerve collar, before the middle 
