BRUES: A NEW SPECIES OF PERIPATUS. 387 



evidently resembles the present species closely. It has however, 

 3t) pairs of legs in the male instead of 34 and from Bouvier's figure 

 (t. c. p. Ill, fig. 59) the papillae are evidently of much more nearly 

 equal size, especially on the alternately narrower dermal folds; also 

 the nephridial tubercle of the fourth pair of legs completely bisects the 

 third creeping pad, which is not the ca.se in P. prruvlanus. The last 

 pre\iously described species of this group P. camcranoi is not very well 

 known and occurs in a part of Ecuador which is close to the portion 

 of Peru in which P. pcruvianus was collected. Nevertheless the two 

 seem to be distinct. In P. camcranoi the primary papillae are of 

 rather variable size, but none are remarkably larger than the others 

 whereas in P. pcnmanm such is by no means the case. Also the 

 Ecuadorian species has only four creeping pads with the vestige of a 

 fifth and the nephridial tubercle of the fourth and fifth legs bisects 

 completely the third creeping pad. 



From the foregoing comparisons it appears that while P. pcruvianus 

 is closely related to a number of other species from the same region, 

 it can not be regarded as conspecific with any of them. 



