ROOM II. SYNOPSIS OF CONTENTS. 77 



tions of the carapaces of Chelonian reptiles, from the same 

 strata, presented by Major Cautley and Dr. Falconer, are also 

 deposited in this case. Among the former are specimens of 

 the Hexaprotodon, an animal allied to the Hippopotamus, 

 and characterised by the presence of six incisor teeth in each 

 jaw : hence the generic name. 



Mylodon. There are likewise bones of colossal Edentata, 

 from the Pampas of South America : the skull and bones of 

 Mylodon Darwinii (so named in honour of Charles Darwin, 

 Esq.) are particularly interesting. 



D. [4.] Macrauchenia. In this compartment are bones of 

 the Macrauchenia Patachonica, an extinct Pachyderm, as 

 large as a Rhinoceros, uniting characters connecting it with 

 the Camel and Palaeotherium, from Patagonia; presented by 

 Charles Darwin, Esq. 



In the same case are the skull, vertebrae, scapula, humerus, 

 femur, and other bones of the Scelidotkerium (S. leptocepha- 

 lum), an extinct Edentate related to the Mylodon : from 

 South America ; collected and presented by Mr. Darwin. 1 



E. [o.] This case is filled with the remains of the carapace, 

 plastron, &c. of several individuals of the Megalochelys 

 Atlas; a stupendous fossil tortoise, discovered by Major 

 Cautley and Dr. Falconer in the Eocene strata of the Sewa- 

 lik Hills ; with the bones of Mastodons, Elephants, &c., to 

 be described in the sequel. A model of a young individual, 

 constructed by Mr. Dew, is placed near the entrance of Room 

 I., and is described ante, p. 11. Some of these relics show 

 that the length of the carapace was upwards of twelve feet 

 in adult specimens. 



F. [6.1 This case is unoccupied. 



G. [7.J Stetterida. On the right of the entrance. This 

 case is assigned to fossil Starfishes and Crinoidea, Some of 

 the Starfishes and Marsupites from the chalk of Sussex, on 

 the right-hand shelf, are unusually perfect. 



Pentacrinites. In the centre of this cabinet there is affixed 

 to the wall a slab of Lias limestone, about five feet square, 

 from Bohl in Wirtemburg, on which is disposed in relief a 



1 As these Mammalian Kemains will probably be removed to Boom 

 VI., it will be convenient to notice them more particularly when 

 treating of the contents of that apartment. 



