phagus to anus. Eggs with embryos 0,065 mm. 
long and 0,049 mm. wide. 
Habitat: intestine of Francolinus adsper- 
sus Waterh. 
Geographical distribution: German Soutb- 
west Africa. 
24. Subulura schebeni (Linstow, 1909) 
Railliet & Henry, 1913. 
(Plate II fig. 2). 
Dimensions: 
d Length: 5,8 mm.; width: 0,32 mm. 
Q Length: 7,3 mm.; width 0,32 mm. 
Cuticle showing transversal rings. Ce- 
phalic extremity rounded. Mouth circular, 
leading to flat buccal cavity, with two late- 
ral plates of chitin. Oesophagus with round | 
and thickened posterior extremity equal to 1/5 
in the male, to 1/6 of total length in the female. 
Excretory pore very much to the front, divi- | 
ding the oesophagus in the proportions 4:9. | 
Nerve collar dividing the same organ in the | 
proportions 1:4. | 
Male: Tail equal to 1/37 of body. Spi- 
cules equal, sharp-pointed measuring 0,53 mm. 
Ten papillae: two pre-anal, three ad-anal and 
five post-anal ones, the penultimate lateral; | 
and the last one double. Sucker ellipsoid. 
Female: Tail ending in a point, represents 
1/15 of total length. Vulva dividing the body 
in two proportional parts, 3:4. Genital organs 
stretching from end of oesophagus to anus. 
Eggs with embryos, with fine shell, 0,070 mm. 
long and 0,047 mm. wide. | 
Habitat : intestine of Gynictis penicillata 
(Cuv.) 
Geugraphical distribution: German. South- | 
west (?) Africa 
25. Subulura leprincei (Gendre, 1909) 
Raililet & Henry 1913. | 
(Plate VIII figs. 1 to 8; Plate X figs. 3 & 4.) 
Dimensions: | 
3 Length: 18 mm; width: 0,42 (Gendre.) | 
Length: 10,5 mm.; width: 0,30 mm. | 
(Seurat). | 
o Length: 18,2 to 35 mm; width: 0,60 | 
mm. (Gendre). | 
32 
Length: 21 mm; width: 0,40 mm. 
(Seurat). 
Body yellowish-white, tapering at extre- 
mities, especially at posterior end in both 
sexes. Cuticle finely striated. Lateral expan- 
sions narrow, stretching from head to near 
tail. Cephalic extremity rounded ; without lips, 
or boundary line to separate it from the rest 
of the body. Mouth wide and circular, surroun 
by six equidistant papillae; four sub-me- 
dian and two lateral ones. Buccal cavity cy- 
lindrical, with chitinous teeth at the bottom. 
Pharynx short and muscular, Oesophagus in 
| the beginning narrower than pharynx, gradu- 
ally thickening towards the posterior extre- 
mity where it is dilated and communicates 
with bulb, by means of a narrow pedicule. 
Intestine uniformely cylindrical, straight to 
the anus. Excretory pore situated on ventral 
surface, at the level of the anterior 1/4 of 
oesophagus, 
Male: Oesophagus corresponding to 1/9,3 
of total length. Tail 1/48 of body. Posterior 
region conical, sharp-pointed, ventrally curved 
with caudal bursa well-developed. Sucker 
| oval, fibrous, far from cloaca. Thirteen papil- 
lae on each side: seven pre-anal and six 
post-anal; the post-anal are submedian, free, 
arranged in longitudinal rows, with the ex- 
ception of two lateral ones: one pre-anal at 
the level of anus, another post-anal in the 
middle part of tail; of the pre-anal group, the 
two first ones are one above, one below the 
sucker; the two last at the level of the cloaca ; 
of these, one is immediately above the anus; 
in the group of post-anal ones, the fourth is 
very small. Spicules two, equal, curved, deli- 
cately transversally striated, measuring 1,40 
“mm. (1 mm. SEURAT) presenting two dis- 
tinct parts: the shortest ending in funnel- 
shaped dilatation is cylindrical; the other end-. 
ing in sharp point is voluminous, prismatic 
and has a depression on the ventral surface. 
Accessoy piece triangular and hollowed, mea- 
suring 0,130 mm., according to SEURAT. 
Female: Oesophagus measuring 1/15 of 
length of body; tail 1/25 (1200 mm. SEURAT) 
Straight conical tail, sharper-pointed and slen- 
