103 



the skuU small. Dorsal vertehrae thirteen, with thirteen pair of rather 

 elongate slender ribs ; the spinous process of the first dorsal vertebra 

 as long as the second and following ones. The caudal vertebrae 

 fifteen. 



Inhab. India ? Java ? 



There is a skin and skeleton of this species in the coUection of the 

 British Museum : it is a malė which lived in the Surrey Zoological 

 Gardens for ten or twelve years. 



M. F. Cuvier established a species under the name of Acanthion 

 Javanicum on a skuU from Java in the Paris Museum. In the Ley- 

 den Museum there are several specimens of this or the uext species, 

 \vhich they regard as M. F. Cuvier's species. Neither M. Cuvier's 

 nor my notes on the Leyden specimens enable me to distinguish to 

 ■vvhich the names belong. 



While living in the Surrey Zoological Gardens it bred with a fe- 

 male of 1!he Common Crested Porcupine, and produced a hj-brid spe- 

 cimen, which, with its skeleton, is no\v in the British Museum col- 

 lection. The animal is intermediate between the t\vo species, having 

 only a short compressed crest ; and the skuU is equally intermediate 

 in character, having the broad palate and oblongteeth of H. cristata, 

 and the more elongated form of the skuU and the triangular inter- 

 maxillaries of the malė parent. 



4. Acanthion Flemingii. Sąuare-spined Porcupine. 



The palate between the grinders narrow (21 lines), and rather 

 wider behind bet\veen the lašt grinders. Condyle of skull large. 



The dorsal vertebrae fourteen, with fourteen pair of rather wide 

 ribs ; the spinous process of the first dorsal is nearly as long as the 

 second and third ; and of the second cervical is large and recurved. 

 Caudal vertebrae seventeen. . ■\\. 



Inhab. ? Skull in British Museum. ^/. V-^ i 



Measurement of Škulis in inches and lines. 



Length of sktill above 



Length of nasals 



Width over middle of orbits 



Width of nose in middle 



Width of lower edge of zygoma . 

 Width of lower edge of zygoma "I 



to centrai suture J 



Width of palate to middle of 1 



crown end of nasals J 



Length of skull beneath 



Length of palate 



Length of lines of grinders 



Length of lower jaw 



\Vidth at ear buUa 



Width of the condvles 



Acanthion 

 Hodgsonii. 



Adult. 

 4 7J 

 2 6 

 1 8 



1 3 



2 3 



O 11^ 



Junior. 

 4 2 



1 9 

 1 6i 



i' "ii 



1 o 



2 10 

 1 9 



Acan- Acan- Aean- 

 thion tl"°° I *tio° 

 CuTieri. J*^*""- ?^e- 

 ciim. nuDgii. 



Adult. 

 5 6 

 2 9i 



2 3 



1 Ii 



2 11 

 2 5 



2 3 



5 4 



2 11 



1 4 



3 10 



2 1^ 



4 6 



1 10 



1 7 



1 U 



2 OJ 



4 5 

 2 3 



1 O 



2 10 

 1 10 



4 

 2 1 



1 7 



Hybrid. 



6 4 6 



1 10 



1 8 



1 2i 



2 1 



1 lOį 



1 8 



1 10 , 1 11 



1 Hl O iiĄ! 1 H! 1 O 



