133 



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 resembling 

 those of the Sanga in position. 



7. Description 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 behiiad, 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. 



The depressed form and divided caudal plates induce me to place 

 this genus in Eimjclidee. In external appearance it much resembles 

 the North American Land Tortoise, Testudo goj)her, but it is at once 

 known from that species, and all the other genera of Testudinidee, 

 Emydidoe and Chelydidce, by the peculiar form of the pectoral shields, 

 which at first sight might be mistaken for a very large-sized inguinal 

 shield, if that plate were not also present. 



In this respect it somewhat resembles the genus Kinosternon, but 

 there the shield is only narrower at the inner end, and rather nearer 

 to the centre of the sternum. 



Various genera of Testudinidee have the pectoral plate much 

 smaller than the others ; and perhaps the small size of the pectoral 

 shield in this genus shows its affinity among the Emydidce to that 

 family. 



If it were not for the irregular division of the caudal plates, and the 

 form of the pectoral plate, it might be regarded as nearly allied lo 

 the very variable Testudo Indica. 



