STRATA OF TILGATE FOREST. 55 



size ; — several smaller examples were discovered by Mrs. Mantell in the 

 diluvial aggregate. 



42. A curved tooth much compressed, the surface smooth, the apex 

 obtuse, and the edges serrated. The external margin is thick and 

 rounded, the inner edge thin and acute ; length 1 -5 inch. 



This specimen resembles fig. 1328 of Lhwyd, but does not entirely 

 correspond with the figure of that author ; a reference to it will however 

 serve to render this description more inteUigible. « The teeth near the 

 front of the lower jaw of the baj'racouta, are very similar in form*." 



43. Part of the scale of a fish ? it is half an inch square, and its surface 

 covered with irregular depressions. " The markings on its surface re- 

 semble those of the dorsal scales of the sturgeon f." (Accipenser sturio.) 

 May it not have belonged to a species of trionyx ? 



44. Part of the lower jaw of a fish ? (or of an animal allied to the mo- 

 nitor ?) imbedded in a block of limestone. 



This interesting specimen is in the possession of my friend E. Weekes, 

 Esq. of Hurtperpoint. It is part of the right side of the lower jaw, about 

 1 '6 inch long. It contains seven slender curved pointed teeth, the largest 

 of which is 0*2 inch long. Mr. Konig, to whose notice it was submitted, 

 thought it belonged to an animal aUied to the monitor. 



45. Portion of a rib shghtly curved, and nearly flat. 



Length 14 inches ; width of the narrowest extremity 2*5 inches, of the 

 widest, 3 inches ; thickness, 0*8 inch. 



This specimen bears a greater resemblance to the rib of a quadruped, 

 than to those of the lacertse 



From this sketch of the strata and organic remains of the Tilgate 

 strata, imperfect as it may be, several important inferences naturally arise : 

 but as my information concerning these remarkable deposits is too Hmited 

 and uncertain to warrant any general conclusions, I shall not at present 



* On the authority of Mr. Clift. f Mr. Clift. 



