ON THE OVIPAROUS SPECIES OF ONYOHOPHORA. 395 



1898. Peripatus oviparus, Willey. 'Anatomy and Deve- 

 lopment ol: Peripatus novEe-britanniee/ pp. 

 35, 38. 



1900. Oopei'ipatns oviparus, Dtndy. ' Zoologisclier 

 Auzeiger,' xxiii, p. 510. 



Description. — There are fifteen pairs of claw-bearing 

 legs, e:ich (including- tlie last paii-) with three pale-coloured 

 spinous pads on its ventral surface. The proximal pad is 

 much narrower but at the same time longer than the others, 

 and the distal one is much the suiallest. On the fourth and 

 fifth legs the proximal pad is transversely divided into three 

 parts, the middle part being very small and bearing the 

 aperture of the nephridiutn. The foot bears three large 

 primary papillie, anterior, posterior, and dorsal, overhanging 

 the pair of claws. 



The inner jaw-blade (fig. 7) has one large tooth and about 

 eight small ones ; the number of the latter is probably not 

 constant, and some of them are very minute. The outer 

 blade (figs. 7, 8) has one large tooth, and one small, blunt, 

 and feebly developed accessory tooth. 



In the adult female, the ovipositor (fig. 9) is very con- 

 spicuous, even in a state of retraction, as an ovoid body of a 

 pale yellow or orange colour, lying between the legs of the 

 last pair. In specimens ordinarily contracted iu spirit it is. 

 about as large as each of the legs between which it lies, but 

 it is capable of great extension (fig. 10). Its surface is 

 ornamented with minute spine-bearing papillae, and the 

 genital aperture is a slit at the apex, placed parallel with the 

 long axis of the animal. I have seen no indications of crural 

 glands or accessory genital glands in the female. 



In the male, the genital aperture lies between the legs of 

 the last pair, but is not specially prominent. Between it and 

 the anus are a pair of apertures of accessory glands lying 

 close to the middle line. Crural glands probabl}^ occur in all 

 the legs except the first pair; their apertures may or may not 

 be visible, according to the state of contraction. Those of 



