DISTRIBUTION AND CLASSIFICATION OF ONYCHOPHORA. 393 
Austro-Peripatus. The skin-pigment appears to be pecu- 
har, but in not being affected by spirit it approaches Capo- 
and Austro-Peripatus; and the same may be said about 
the absence of well-developed coxal organs, and the form of 
the jaws. Its affinity would appear to be closer to Austro- 
and Capo-Peripatus than to Neo-Peripatus, but it differs 
from Austro-Peripatus in the variability of its lez number 
(1) and in its ovum. On the other hand it has no crural 
glands, a feature which is found elsewhere only in Austro- 
Peripatus. The form of its ovum (11) and its trophic 
vesicle (12), though peculiar characters, are nearer the corre- 
sponding’ structures in Capo-Peripatus, as also is the 
structure of its vas deferens (14). On account of the 
number of its peculiar features we have no hesitation in 
establishing it as a distinct group, but we think it is con- 
siderably nearer to Capo-Peripatus than to Austro-Peri- 
patus, from which it is distinguished by the very important 
characters of its ovum as well as by its leg-number. 
CAPO-PERIPATUS.—Peripatus is found in Natal and 
Cape Colony. It is represented by seven well-established 
species (Purcell, 1899), which exhibit the following charac- 
ters: 
1. The number of legs (16—25 pairs) is variable when the 
number of pregenital legs exceeds 19 pairs. 
2. Outer jaw with one minor tooth; inner jaw without 
diastema or saw. 
3. Legs with three spinous pads. 
4. Nephridial openings of legs 4 and 5 on the proximal 
pad. 
5. Feet with three distal papille, two anterior and one 
posterior, except in one species, cinctipes, in which one of 
the anterior papillee is dorsal. 
5a. Feet with two papille at the base of the foot (Fig. 10), 
except in one species, cinctipes. 
6. Genital opening between the legs of the last pair which 
