DISTRIBUTION AND CLASSIFICATION OF ONYCHOPHORA. 387 
17. Legs with well-developed coxal organs (Fig. 5). There 
are furrows on the ventral side of the bases of the legs 
provided with tumid lips and lined by a smooth, non-tubercu- 
late epithelium. 
18. Crural glands in many legs in the males opening on 
papilla (Fig. 5). 
19. The accessory glands of the male open separately at 
the sides of the anus. 
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Fie. 6.—Fourth leg of a female P. Tholloni, ventral view. 
(After Bouvier.) 
CONGO-PERIPATUS.—A single species, P. Tholloni, has 
been described by M. Bouvier from the French Congo. They 
were found among leaves on vegetable humus round the 
trunk of an Hlais guineensis at Ngomé in Ogdoué. Only 
a few specimens have been found, and it is possible that 
other species will be discovered. It is quite distinct from 
the Capo-Peripatus, and must be regarded as constituting 
a distinct type. Its characters are as follows: 
1. Number of legs (twenty-four to twenty-seven pairs) is 
variable in the same species. 
2. Inner jaw with a diastema and a saw of denticles. 
