126 PITHECHIR MELANURUS. 



laro-e : in the adult female it measures 11,5 Millimeters 

 (exactly the size and shape of the peois of the adult male) 

 so that I at first mistook the young individual for a male, 

 as this suckling young has a clitoris measuring 6 Milli- 

 meters: the four small nipples are clearly visible. 



Some measurements (in Millimeters) of the cT, 9 ^^^ 

 young 9 preserved in spirits : 



(f 9 young 9 



Length of head and body . 180 200 130 



Nose to eye 21 22 16 



Eye to ear 14 16 10 



Ear 15,5X14,5 17X15 14X14 



Length of tail 193 210 128 



> » fore foot with claw. 16 17 15 



» » hind foot. ... 31 32 26 



The skull and teeth agree with the figures published 

 in N. L. M. 1890, plate 9, figs. 1 — 4, so that it appears 

 that I was correct when I referred these skulls to our old 

 stuffed specimens of Pithechir melanurus (1. c. p. 226). 



The palate-ridges (plate 4, fig. 7) bear some interest 

 as they widely differ from those on the palate of the 

 greatest part of the other Muridae known to me. 



The skeleton presents 13 costales, 6 lumbares, 4 sacra- 

 les and 37 caudales. 



]Votes from the Ljeyden Museum, Vol. XIV. 



