1844.] Farther observations on the Pondicherry Fossils. 149 



cinctum of Sowerby, though this shell is rare as late as the 

 secondary strata. 



Echinus--! think 4 species of Echinus have been disco- 

 vered — the most common exactly resembles the Spatangus 

 cor marinum of Parkinson : it was collected in considerable 

 numbers in the ploughed fields at Seedrapett. 



Zoophyte.— Three or four species of Zoophytes have been 

 found. By far the most common, is the one mentioned in the 

 Madras Journal for November 1*40, and at first mistaken by 

 Dr. McLeiland for the teeth of Saurians. It is found in great 

 numbers — considerable masses of stone, consisting sometimes 

 of numerous individuals cemented together in a solid mass 

 and presenting curious and interesting sections. Further ac- 

 quaintance with this fossil induces me to consider it a species 

 of Turbinolia. 



Fossil Wood. — Many specimens of Calcareous fossil wood 

 have been found, which generally wear the appearance of 

 having been drifted long at sea. They are generally bored by 

 a species of Teredo, the long tubes of which are sometimes so 

 closely packed, as to leave little of the original substance re- 

 maining. The cavity of the tube is filled sometimes with cal- 

 careous spar, at others, with a dark and hard lime stone. 

 Transverse sections of these specimens when polished, pre- 

 sent a beautiful and curious appearance. 



Fishes Teeth. — I have lately been very fortunate in ob- 

 taining these interesting fossils — they are of a small species,f 

 retain their polished surface, are of a brown colour, and a 

 few with serrated edges. % 



The above are the principal and most interesting Fossils 

 found at Seedrapett — associated with them are a great num- 



•t For '• small" I would read " shark." — B. C. 



X Portions also have been discovered, striated, and of that dark enamel, belonging to 

 the Saurcids.— B. C, 



