Dr. J. E. Gray on new species of Tortoises. 67 



" The Ras having subsequently made me a present of three of 

 these animals alive, I found them not only in excellent health, but 

 so exceedingly wild, that I was obliged to have them shot. 



" The horns of one of these are now deposited in the Museum of 

 the College of Surgeons, and a still larger pair are placed in the 

 Collection of Lord Falentia, at Arley Hall. The length of the 

 largest horn of this description which I met with was nearly four 

 feet, and its circumference at the base twenty-five inches. 



" I shall only further observe that its colour appears to vary as 

 much as in the other species of its genus ; and that the peculiarity in 

 the size of the horns was not confined to the male, the female being 

 very amply provided with this ornamental appendage on her fore- 

 head, pp. 258, 259. See also Bruce's 'Voyage,' App. 1. Letters 

 9 & 10." 



Dr. Gray observes that the horns are shorter, and more curved 

 and Ivrated than the figure engraved in t. 19, at p. 259 of Salt's 

 ' Travels in Abyssinia,' which also appears to make them bear a larger 

 proportion to the size of the animal than the specimen suggests ; and 

 they are quite as remarkable for their erect position on the forehead 

 as for their size. 



They and the core which supports them are very light, compared 

 to their size, and not half the weight of the smaller wide-spreading 

 horns of the long-horned Cape Waggon Oxen. The horns are thin, 

 pale coloured, and of a loose texture, being worn and fibrous on the 

 surface in several parts. 



In the lightness and very cellular structure of the core, the thin- 

 ness of the horny coat, and the large size, they agree with the pair 

 of horns in the British Museum brought from Central Africa by Cap- 

 tain Clapperton, R.N., and Major Denham, R.E., which are figured 

 in Griffiths' 'Animal Kingdom,' vol. iv. t. 201. f . 4 ; but these horns 

 are shorter and much larger in diameter, and are spread out on the 

 sides of the head like those of the Common Domestic Oxen, and they 

 are very much lighter for their size than those of the Galla Oxen or 

 Sang a. 



Sir Richard Vivian has kindly informed me that he has seen a breed 

 of cattle in Italy, with the horns rather erect, somewhat resem.bling 

 those of the Sanga in position. 



Descriptiom of a New Genus and some New Species of 

 Tortoises. By John Edward Gray, Ph.D., F.R.S., 



V.P.Z.S. ETC. 



Fam. 1. Emydid.^. 



1. Manouria, n. g. 



Animal unknown. Shell rather depressed ; caudal plates double, 

 separate ; sternum solid, broad, produced and slightly nicked in 

 front, notched behind, with only five pairs of broad shields ; pectoral 

 shields short, subtriangular, only occupying the angle between the 

 outer edge of the humeral and abdominal shields ; axillary shields 

 small, inguinal larger ; the areola of the discal shields central. 



5* 



