306 MR. ATTHEY ON PALATAL TEETH OF A 



Ulva geispa, Light. 



On a thatched roof at Bardon Mill. 



Tetraspora lubrica, Ag. 

 In stream at Ryhope Point. 



Tetraspora gelatinosa, DesiK 



Pool near Charlton, North Tyne^ and near Bishopwearmouth 

 Cemetery. 



Enteromorpha inteStinalis, Link. 



Hylton Burn ; ditches on Holy Island and at Hartlepool ; 

 pond near Pensher Station, &c. 



Palmella cruenta, A(f. 



Very common on footpaths and at the base of damp walls 

 round Sunderland. 



Cylindrospermum spirals. 



Ryton Willows, September, 1861. 



Physactis parvula, Kiitz. 



Moat at Raby ; collected by the E-ev. A. M. Norman. 



Clathrocystis ^rtjginosa, Hen/rey. 



Moat at Raby ; collected by the Rev. A. M. Norman. 



XIII. — On the Occurrence of the Palatal Teeth of a Fish belong- 

 ing to the Oenus Climaxodus, M'Coy, in the Low Main Shale 

 of Neivsham. By Thomas AtThey. 



(Head October 9th, 1868.) 



In this communication I wish to make known the discovery of 

 some palatal teeth which have occurred to me during the inves- 

 tigations I have made in the black shale of the Low-Main Seam 

 of Newsham. Some of these have been in my possession more 

 than eight years, others have been found recently. In the hope 



