HYSTRIX MÜLLERI. 89 



cupine figured by Marsden ^) , with the following very 

 brief description "Porcupine [hystrix longicauda) landak, 

 and, for distinction, babi landak." In his figure nearly 

 all the quills have two black rings, hitherto never met 

 with in the Porcupines from the Malayan Archipelago. 

 The Acanthochoerus Grotei (vide plate and description) is 

 a Porcupine with the tail rather elongated, covered with 

 white spines and having the whiskers black. The Sumatra 

 species of Porcupine in the Leyden Museum is not H. 

 longicouda , our Sumatra specimens having the tail as short 

 as the Java species , the spines on the tail being dark 

 ringed and the whiskers being black with very long 

 white tip. 



Günther ^) described specimens and figured skulls of 

 H. crassispinis and Trickys lipura from Borneo. These 

 species may be distinguished at a glance from the other 

 Porcupines of the Malayan Archipelago , H. crassispinis by 

 the extreme thickness of the quills (about twice as thick 

 as an incisor) , Trickys lipura by having the tail reduced 

 to a scarcely perceptible prominence of the skin. The 

 differences in the skulls are evident when comparing the 

 figures of Cuvier's Javan species and those of Günther's 

 Bornean species with our Sumatran skull. 



And so it seems that S. Muller — s. n. H. fasciculata — 

 has confounded three distinct species ; that in Sumatra , 

 Java and Borneo at least four distinct species of Porcupine 

 are found ; and finally that the Porcupine collected by vS. 

 Muller at Padang (Sumatra) is a yet undescribed species. 



Hystrix Mülleri, Temminck MS. 



It must be noticed that S. Muller, 1. c. observes: "the 

 specimens of Porcupine from Sumatra have a much purer 



1) History of Sumatra, 1811, third edition, p. 118, pi. XIII. 



2) P. Z. S. L. 1876, p. 736, pi. LXX and LXXI. 



Notes from the Leyden IMiiseiitn. 



