288 E. C. POLLAED. 



Of the remaining two, one at least possessed more than 

 twenty-seven pairs, but the exact number in both cases is 

 doubtful, since the specimens had been mutilated. 



The numbers given above are perhaps better realised when 

 arranged in a tabular form, thus : 



8 specimens with 25 pairs of ambulatory appendages. All males. 



„ „ „ Both females. 



„ „ „ Female. 



,, „ „ All females. 



„ „ „ Of these 20 were 



opened, and all 

 found to be fe- 

 males. 

 2 „ „ an uncertain number of legs. Both females. 



The male, therefore, seems to be always possessed of twenty- 

 five pairs of ambulatory appendages ; whilst the female, with 

 one doubtful exception, has always more than twenty-five 

 pairs. 



There are four foot-pads ventrally on each of the ambulatory 

 appendages (fig. 3), with the exception of those of the last pair, 

 which are possessed of two pads only (fig. 4). 



At the distal extremity of the foot, close to the claws, there 

 are three primary papillse, two on the anterior margin of the 

 foot and one on the posterior; but the basal papillae are 

 absent. 



The foot-groove, which inP. capensis extends on to the body 

 surface as far as the median ventral line, is in the Dominican 

 form continued only a very short distance on to the ventral 

 surface. 



There are no white papillae on any of the ambulatory append- 

 ages. 



In his description of specimens of Peripatus from Guiana and 

 Dominica, Mr. Sclater (3) mentions the occurrence of a 

 " bladder-shaped appendage " attached to the foot-grooves. 

 Such a vesicle-like structure is very obvious on the legs of 

 some of my specimens, but it appears to be due simply to 

 an extroversion of the lining of the groove. 



