ROOM V. SYNOPSIS OF CONTENTS. 413 



bones, of two species of extinct rhinoceros (R. tichorimts, and 

 R. leptorhinus), from the diluvial deposits of this country. 

 There are also skulls of Rhinoceros from the frozen gravel of 

 Siberia. 



F. (On the right side of the entrance from Room IV.) 

 There are several crania, and many teeth and bones of mam- 

 malia from the Sub-Himalayas, or Sewalik Hills. Among 

 them are fine examples of jaws and teeth of an extinct species 

 of Camel. But this Case contains a most interesting and 

 unique specimen, the skull of the Sivatherium giganteum. 

 There is, likewise, the cast of the skull of another species of 

 the same remarkable animal, the Sivatherium Perimense. On 

 the top of this case there are casts of the entire series of bones 

 of one of the limbs of the Sivatherium giganteum, from the 

 originals in tfie museum of the East India Company. 



On the top of the Wall-cases. 



A. On the angle : a fine specimen of a very large river fish 

 (Lepidotus Mantelli), from the Wealden of Sussex, presented 

 by the Rev. John Gould. 



B. Casts of the bones of the head of a gigantic species of 

 Aster olepis (A. Asmusii), from the Devonian deposits of Riga; 

 presented by Sir R. I. Murchison. 



E. The skull and antlers of the Irish Elk. 



F. There are three fine crania of bovine animals placed 

 upright, and two or three imperfect specimens lying near 

 them. The cranium on the left is from the Sewalik Hills ; 

 the central specimen is also from India, but I could not 

 ascertain the locality ; it is said to have been presented by 

 Major Rawlinson : both are undescribed species. The skull 

 with horns of Bos primigenius, on the right, is from Scotland. 

 There are several fossil crania of Bovidse among the unar- 

 ranged bones of mammalia in Case B. of Room II. ; but in 

 the present state of the collection, it is useless to attempt to 

 particularise them. 



Table-cases. As the Table-cases containing fossil fishes 

 are on the south or left side of the room, and are num- 

 bered consecutively, it will be convenient to describe them 

 in that order, beginning with Table-case, 2, of the annexed 

 plan, (ante, p. 410.) 



2. [1.] ORDER!. PLACOIDS. Ichthyodorulites. The osseous 

 fin-rays, or spines, of various genera of cartilaginous fishes. 

 They comprise a great many species from the secondary and 



