pee Gh eee 
by a cuticular membrane, whichis very thick; 
the lower part showing a thick cuticle and 
three coneiform sharp and slightly deviated 
points. 
Male: Oesophagus very short, its length 
with bulb being 1/14 of that of body. Tail 
short. Sucker slightly developed, long, without 
chitinous ring. Caudal alae narrow. Ten 
pairs of caudal papillae, five of which are 
post-anal; the tenth pair slightly asymetrical. 
Caudal glands opening on the ventral surfa- 
ce between second and third pairs of papil- 
lae. Spicules equal, short, 0,250 mm. long i. 
e. 1/24 part of body. Gubernaculum in the 
shape of an arrow, 0,12 mm. long. Anus 
0,23 mm. from tail end. 
Female: Oesophagus very short, 1/17 of 
whole length including the bulb. Tail short, 
conical, measuring 0,915 mm. ; caudal glands 
opening in posterior 1/4 of tail. Vulva but 
slightly salient, situated before the middle 
“of body, which it divides in the proportions 
5:8. Ovijector bent backwards: horn very long, 
attaining 8 mm. Uteri stretch from 1 mm. 
behind the bulb to the beginning of rectum. 
Ovaries parallel in pre-vulvar region. Nume- 
rous eggs with embryos when ripe, 0,070 mm 
to 0,077 mm. long. and 0,053 to 0,065 mm. 
wide. 
Habitat: caecum of Dipodillus campestris 
Levaill. 
Geographical distribution: Africa : South 
Algeria: Bou-Saãda. 
28. Subulura noctuae (Seurat, 1912) 
Barreto, 1917. (1) 
(Plate 8 fig. 4). 
Dimensions: 
3 Length: 14,5 mm.; width: 0,25 mm. 
Q Length: 22 mm.; width: 0,38 mm. 
Body slender: oesophagus short, as tail 
also. Cephalic expansions reaching to oeso- 
phagean bulb. Buccal cavity divided into two 
distinct parts, with three small rounded teeth 
at base. 
Note 1. In present paper. 
Male: Oesophagus together with bulb 
equal to 1/10 of body. Tail small, with rela- 
tively long point (0,085 mm). Sucker small, 
like a longitudinal cleft. Caudal expansions 
well developed. Ten pairs of papillae, of 
which five are post-anal; of the pre-anal, 
ones, three are near the cloaca and the last 
near the sucker; caudal glands open on 
ventral surface between the second and third 
papillae. Spicules equal, filiform, 0,7 mm. in 
length. Gubernaculum long, triangular, pro- 
longated in the front by two small ridges. 
Anus 0,3mm. from caudal extremity. 
Female: Oesophagus short, measuring 
1/14,5 of total length. Tail short (0,30 inm.). 
Caudal glands in posterior third. Vulva situa- 
ted a little in front of the middle of the body, 
in the 3/7 of length. Ovijector running 
backwards; vestibulum short; horn very large, 
5 mm. Uteri parallel, reaching from bulb to 
anus. Ovaries blackish, in second part of the 
body, behind the vulva. 
Very numerous eggs, with embryos in 
the ripe state, measuring 0,050 mm. by 0,040. 
Habitat: intestine of Carine noctua glaux, 
Sav. 
Geographical distribution: Africa. Alge- 
ria, Bou-Saada. 
29. Subulura (?) macronis (Stewart 1914) 
Barreto (2) 
Plate VI, fig. 10 to 17; Plate VII, fig. 1 to 10 
Dimensions: 
S Length. 3,65—7,412—7,31—7,5 mm.; 
width 0,148 mm. 
Q Length: 6,596 — 7,82 —8,5 mm. 
width: 0,129 —0,1406- 0,153 mm. 
Body filiform, the anterior extremity ta- 
pering abruptly and curved dorsally; the pos- 
terior part gradually sharpening in the male, 
Note 2. For the present we include this nematode 
in the genus Subulura on account of the appearence of 
the sucker without chitinous border. The absence of 
oesophagean bulb and accessory piece, as well as the si- 
tuation of the vulva in the posterior part of the body, 
suggest that the nem.tode cannot be included in this 
genus. Stewart describes it as Heterakis Acheilos- 
tomi (Railliet), insinuating that it ought to be included 
with the Subulurae. 
PRAT cd Si 
