John Francis Walker, M.A., F.B.S., “ On the occurrence 
of Ananchytcs oral us in the Margate Chalk.” 
Ananchytes ovcdus , also called Echinocorys vulgaris , is one 
of the commonest fossils of the “ Upper Chalk with flints.” 
The importance of this specimen consists in its having been 
obtained from the Margate Chalk (with very few flints). The 
classification of the Chalk from the Isle of Thanet to Folkestone, 
is as follows 
Chalk with very few flints—80 feet, Margate. 
Chalk with many flints—350 feet, Broadstairs to Dover. 
Chalk without flints—270 feet, Dover. 
Chalk Marl—70 feet. 
The Margate Chalk appeared to contain very few fossils. An 
excavation was made for drainage purposes in the West Cliff, 
beyond the Hospital at Margate, and the specimen presented 
was brought up from a depth of 30 feet. The cliff, at this 
point, is about 40 feet in height. Several specimens of 
Ananchytes were found, mostly broken, and a few imperfect 
specimens of Micrcister coranguinum. 
This would indicate that these species extended into the “ chalk 
with few flints,” and that the presence or absence of flints did 
not show a Palaeontological horizon. This appears to be also 
the case in the Yorkshire Chalk. 
John Francis Walker, M.A., F.D.S., “ On Terebratula 
bisinuata (Lamark),” from the London Clay of Hampshire. 
This species w r as one of the rarest of British Tertiary 
Bracliiopoda. Dr. Davidson states in his supplement that 
only two well-authenticated British examples are known, 
one in the collection of Mr. Cunningham, the other in 
the collection of J. F. Walker, both of which w T ere found in 
the Eocene clay of Barton Cliff in Hampshire. The species is 
equally rare in Belgium, only two examples having being found 
in the Sables Laekeniens Inferieur, which is said to be of the age 
of the Barton clay. It is more abundant in the Paris basin, 
occurring in the Lower and Middle Calcaire Drossier in several 
localities. Last year a large number of this shell was obtained 
from a railway cutting at Catisfield, near Fareham, in Ilamp- 
