1 10 PSEUDÜCHIRUS SCHLEGKLir. 



Oil the head as one should think in looking at the fi- 

 gure published in Ann. Mus. Civ. Gen. 1881 , plate XI). 

 The upper incisors are very stout, the lower ones have a 

 remarkable form (see 1. c. fig 2 , plate VIII) , distinct from 

 the other species. It must be remarked that the figures , 

 1. c. fig. 2, plate VIII and fig. 2, plate IX, have been 

 drawn after a skull with incomplete nasalia. Generally 

 the teeth are more crowded together than in any other 

 Pseudochirus-ST^ecies, and form here an uninterrupted series 

 (for this characteristic and for the form of the teeth , see 

 1. c. fig. 2 , plate IX). 



To these three very good species I have to add a fourth , 

 which is as well characterised as they are. I propose to 

 call it PseudocMrus schlegelii in remembrance of our regret- 

 ted late Director. This pretty species externally agrees ex- 

 actly with Ps. hernsteinii in all its proportions, and is of 

 the same size. There are only a few differences in color, viz: 

 the head is darker colored and there is no dark stripe on 

 the head ; moreover at the base of the ears a light patch is 

 followed by a darker one. Of more significance however are 

 the differences in form of the skull and dentition. The 

 form of the skull calls to mind that part in Ps. cookii and 

 albertisii', the palate ends close to the last molar and not 

 at some distance behind it as is the case in Ps. hernsteinii, 

 moreover all the teeth are stouter (as in cookii and alber- 

 tisii) and not so weak as in bernsteinii. The length of the 

 upper molar series (with the exception however of the first 

 premolar, which is placed at a certain distance from the other 

 molars in Ps. bernsteinii , whereas it is crowded together with 

 the other molars in Ps. schlegelii) , in the skull of the type- 

 specimen of Ps. bernsteinii measures 10 m.m., in the lower 

 jaw the molar series measures 10 m.m., whereas the same 

 parts in a skull of Ps. schlegelii of the same size measure 

 respectively 13 and 13 m.m. 



The type-specimen , an adult male , has been collected 

 in New Guinea , Arfak Mountains. 



Notes from the Leyden Museum, Vol .VI. 



