POST-TERTIARY POSSILIFEROUS DEPOSITS. "SS 



Cythere concinna, Jones.^ 



— Bunelmensis (Norman). 

 CytUeridea papulosa. Bosquet. 



— punctillata, Brady. 

 Cytlierura nigrescens (Baird). 



— undata, G. 0. Sars. 



— (jibba (Miiller). 



— cellulosa (Norman). 



— clathrata, G. O. Sars. 

 Cytlieropteron latissimum (Norman). 

 By thocy there simplex (Norman). 

 Sclerochilus contortus (Norman). 



5. Go VAN. 



In the excavations for Messrs. Randolph and Elder's docks two beds of clay were 

 exposed. 



1. The upper bed was composed of sand, gravel, and sandy mud, and dipped towards 



the Clyde. The section was — 



a. Mould 4 ft. 



b. Black vegetable matter, crowded with leaves, fragments of 



twigs, &c. ......... 1 



c. Gravel and sand alternating ...... 4 



d. Muddy sand (not pierced through) ..... 



In the muddy sand Pecten opercularis and TrocJms cinerarius were met with. 



2. The lower bed was not detected in the section immediately beneath the upper, but 

 made its appearance at a little distance, dipping away from the river and then rising 

 upwards. At a depth of eighteen feet marine shells were sparingly collected, including 



Cyprina Islandica, 

 Tellina calcarea, 

 Mytilus edulis, 

 Buccinum tindaium, 

 Balanus crenatus. 



The Ostracoda from this lower bed proved precisely the same as those common in the 



1 The remains of the limbs are distinctly visible in some specimens of this species from this 

 bed. 



