220 PROFESSOR ¥. M. BALFOUR. 



the Others, except in the fact that the proximal pad is broken 

 up into three, a small central and two larger lateral. The 

 enlarged segmental organs of these legs open on the small 

 central division. 



The last (17) leg of the male (PI. XIV, fig. 4) is 

 characterised by possessing a well-marked white papilla on the 

 ventral surface. This papilla, which presents a slit-like open- 

 ing at its apex, is placed on the second row of papillae count- 

 ing from the innermost pad, and slightly posterior to the axial 

 line of the leg. 



The Anal Papillae, or as they should be called, genera- 

 tive papillae, are placed one on each side of the generative 

 aperture. They are most marked in small and least so in 

 large specimens. That they are rudimentary ambulatory 

 appendages is shown by the fact that they are sometimes pro- 

 vided with claws, and resemble closely the anterior appendages. 



PART II. 



Alimentary Canal. 



The alimentary canal of Peripatus capensis forms, in 

 the extended condition of the animal, a nearly straight tube, 

 slightly longer than the body, the general characters of which 

 are shown in figs. 6 and 7, 



For the purposes of description, it may conveniently be 

 divided into five regions, viz. (1) the buccal cavity with the 

 tongue, jaws, and salivary glands, (2) pharynx, (3) the oeso- 

 phagus, (4) the stomach, (5) the rectum. 



The Buccal Cavity. — The buccal cavity has the form of a 

 fairly deep pit, of a longitudinal oval form, placed on the 

 ventral surface of the head, and surrounded by a tumid lip. 



[The buccal cavity has been shown by IMoselcy to be formed 

 in the embryo by the fusion of a series of processes surround- 



