Organic Remains of the Diluvium in Norfolk. 309 



their coarse texture to belong to a species of whale, have, at 

 various times, been met with in a gravel-pit at Roydon, near 

 Diss. 



ANTEDILUVIAN REMAINS. 



Pisces. 



1. The anterior portion of a fish, with part of its head. 

 From the elongated rhomboid al form of the scales, I presume 

 it to be a specimen of the Dapedium politum, a species of a 

 new fossil genus formed by Dr. Leach, for the reception of the 

 fossil fish described and figured by Mr. De la Beche, in Geol. 

 Trans, vol. i., part first, N. S. page 45, plate 6, fig. 1. 



2. A fragment of the armed fin-bone of a species of balisfes. 

 It is a tuberculated variety ; a similar one is noticed by M. 

 De la Beche, in Geol. Trans, vol. i., N. S. page 43, as occur- 

 ing in the lias at Lyme. 



3. Small vertebrae of a species of squalus. 



4. Part of the spinal column of a fish with the ribs attached. 

 It consists of nine vertebrae, enveloped in the grey centre of a 

 black flint : it is too imperfect to determine of what fish it is 

 the remain. 



5. A small lanceolate tooth of a species oi squalus, imbedded 

 in a flint. 



6. Vertebrae of a species of esox ; originally deposited in 

 the crag, or upper marine formation. 



Sauri, 



1. Caudal vertebra of a crocodile, resembling that of Horn- 

 fleur. 



2. Tooth of a species of crocodile, 



3. Tooth of an ichthyosaurus, agreeing with those of/, com- 

 munis. It forms one of the pebbles of a coarse sandstone 

 breccia. 



4. Tooth of a species of ichthyosaurus ; imbedded in the 

 bituminous shale of the kimmeridge or Oxford clay. This 

 tooth does not resemble those of either of the three species 

 described by the Rev. W. D. Conybeare in the Geol. Trans- 

 actions. 



5. Vertebrae of the ichthyosaurus, belonging to the anterior 



