DESCRIPTION OF PLATES. 125 



extremity, ±- in. Transverse diameter of a single trochlea, 1*9 in. Antero-posterior 

 diameter measured alongst ridge of trochlea, 2-2 in. Transverse diameter of shaft, 

 2 - l in, Antero-posterior ditto, 2-1 in. 



Figs. 13, 18 a, and 13 b. — Fragment of upper end of metatarsal bone 

 of Sivatherium giganteum. — B.M. No. 39,753. 



Length of fragment, 7 "2 in. Transverse diameter of upper extremity, 4 - l in, 

 Antero-posterior diameter of ditto, 3 - S in. 



Plate F. 



Bramaiherium Perimense (Falc.), from Perim Island. A large and 

 peculiar ruminant, nearly equalling the Sivatherium in size, but essen- 

 tially different. The plate represents fragments of the bones of the 

 anterior and posterior extremities. A description of two fragments 

 of the left tipper jaw, including the entire series of upper grinders, 

 will be found in the memoir on Perim Island fossils. (Journ. Geol. Soc, 

 July, 184:5). The specimens figured in this plate were brought from 

 Perim Island by Captain Fulljames. 



Figs. 1, 1 rt, and 1 b. — Fragment of lower end of humerus, with 

 articular surface. 



Figs. 2 and 2 a. — Fragment of upper end of ulna, with olecranon and 

 sigmoid cavity. 



Figs. 3, 3 a, and 3 b. — Fragment of lower end of radius and ulna. 



Figs. 4, 4 a, and 4 b. — Fragment of lower end of radius and ulna. 



Figs. 5 and 5 a. — Fragment comprising portion of shaft and distal 

 extremity of metacarpal bone. 



Figs. 6 and 6 a. — Fragment comprising distal articulating extremity 

 of metacarpal bone. 



Figs. 7, 7 a, and 7 b. — Fragment of upper end of femur. 



Figs. 8, 8 a, 8 b, 8 c, and 8 d. — Calcaneum. 



Figs. 9, 9 a, 9 b, 9 c, and 9 d. — Astragalus. 



Figs. 10, 10 a, 10 b, 10 c, 10 d, and 10 e.— Astragalus. 



Plate G. 

 Bos Namadicus (Falc. and Caut.), from the Nerbudda. 



Figs. 1, 1 «, and 1 b. — Fragment of cranium, showing forehead, occiput, 

 occipital condyles, and foramen magnum ; portion of right horn and core 

 of left horn. The specimen shows well the flat square forehead, the height 

 being about equal to the breadth. The horns are attached to the ex- 

 tremity of the highest salient line of the head. The horn-cores spread 

 out horizontally, with a slight arch upwards and concavity below. The 

 on of the horn-core shown in fig. 1 b. is much more circular than 

 in the Gour or Gayal or than in Bos Palceindicus. 



This specimen is in the British Museum (No. 39,760). 



Figs. 2, 2 a, 2 b, and 2 o. — Bos Namadicus. Four different views of 



I 



