DESCRIPTION OF PLATES. : 125 
extremity, 4: 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, 
2-1in. Antero-posterior ditto, 2°1 in. 
Figs. 15, 13 a, and 13 6.—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°1 in, 
Antero-posterior diameter of ditto, 3°8 in. 
Puate F. 
Bramatherium Perimense (Fale.), 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 upper jaw, including the entire series of upper grinders, 
will be found in the memoir on Perim Island fossils. (Journ. Geol. Soc., 
July, 1845). The specimens figured in this plate were brought from 
Perim Island by Captain Fulljames. 
Figs. 1, la, and 1b.—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, 5 a, and 3 6.—Fragment of lower end of radius and ulna. 
Figs. 4, 4a, 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, 8b, 8c, and 8d. 
Figs. 9, 9 a, 9 6, 9c, and 9 d.—Astragalus. 
Figs. 10, 10 a, 10, 10.c, 10 d, and 10 e—Astragalus, 
Calcaneum. 
PiatTE G. 
Bos Namadicus (Fale. and Caut.), from the Nerbudda. 
Figs. 1, 1 a, and 1 6.—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 
section of the horn-core shown in fig. 1 b. is much more circular than 
in the Gour or Gayal or than in Bos Paleindicus. 
This specimen is in the British Museum (No. 39,760). 
Figs. 2, 2a, 2b, and 2 ¢.—Bos Namadicus. Four different views of 
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