306 DR. J. E. GRAY ON THE SPECIES OF PORCUPINES. [May 22, 



with rather darker edges to the plates ; temple with a large subtri- 

 angular oblong spot over the tympanum. 



Hab. . 



The front and hinder lobes of the sternum broad ; the sides of the 

 front lobes straight and nearly parallel. The hinder vertebral plate 

 is as wide as the three hinder marginal plates. The hinder lateral 

 marginal plates are small ; that is to say, they have the typical cha- 

 racters of the American Testudines called Gophers. 



Testudo tabulata. 



Shell dark brown ; the margin sharp, entire. Nuchal plate none. 

 Head dark brown ; the front of the crown with a large subtriangular 

 spot with rounded angles, surrounded in front by many series of 

 small oblong spots, the front spots over the nostrils being the largest; 

 the hinder part of the crown with three series of small transverse 

 spots, and with a series of somewhat similar-sized and -shaped spots on 

 each side of the crown. The front and hinder lobes of the sternum 

 narrowed at the end, with straight converging sides. 



Chersina angulata. 



Head of voung black brown above, with a small white spot over 

 each nostril, a white streak over each eye to the temple, and a large 

 round white spot on each side of the crown, with a streak behind, 

 and sometimes confluent, with the hinder part of the spots rather 

 diverging from each other on the occiput ; side of the head dark, 

 with a very narrow white streak from the nostril to the front edge 

 of the eyes, and two narrow streaks on the temple ; chiu, throat, and 

 sides of the neck pale, with some dark streaks. 



Hab. Cape of Good Hope. 



2. On the Species of Porcupines in the Gardens of the So- 

 ciety and in the British Museum. By Dr. John Edward 

 Gray, F.R.S., V.P.Z.S., F.L.S., *c. 



(Plate XXXI.) 



Having observed a living Porcupine in the Gardens sent from 

 India by Mr. Arthur Grote, F.L.S., C.M.Z.S., which is very un- 

 like the Crested Porcupine of Europe, Africa, and Iudia, and the 

 Non-crested Porcupine of Java and Nepaul, I was induced to com- 

 pare it with the specimens in the British Museum, and was rather 

 surprised to find that it is nearly identical with a Porcupine which I 

 noticed in the 'Proceedings of the Zoological Society,' 184 7, p. 103, 

 and which, as I was informed by Mr. Bartlett, was a hybrid between 

 the female Crested Porcupine and a male of the Non-crested Por- 

 cupine of Java — more than one animal, the result of this mixture of 

 the species, having been born in the Surrey Zoological Gardens. 



I had no doubt of the accuracy of the account of the origin of the 

 specimen which I received from Mr. Bartlett. But Mr. Bartlett 



