4 
: 
: 
. 

37 
the pits named above, especially in Bevendean. It is not 
usually gregarious, but here it is more so than in Devonshire. 
There is another distinction, the zone is without flints in 
Devonshire ; in Beyendean they are quite common. The 
presence or absence of flints is not a safe guide throughout a 
zone. In the Marsupites zone in Kent flints are almosi 
absent, while in Brighton, near Roedean Cottage, on the sea 
bed, flints form nearly one-third of the area. Small Ammo- 
nites are found at the middle of Falmer Bottom, their last 
appearance. They are more common in Norton pit, and still 
more so in Balsdean Pit, perhaps owing to the larger 
exposure. They are always in casts, and generally much 
crushed. The species of the specimens exhibited have not yet 
been determined. 
Pleurotomaria perspectiva is the only univalve found in 
Balsdean pit. Hehinoconus conicus occurs here in a form 
peculiar to the zone; it is higher and more conical than the 
form in the Marsupites Zone. The absence of Echinoconus sub- 
rotundus indicates that the exposures are near to the top of the 
zone, coupled with the presence of Holaster planus at the top of 
the small Bevendean pit. Spondylus spinosus is present in 
Balsdean and Bevendean pits. It is much smaller than the 
form found in the Marsupites Zone. Two specimens from the 
same pit have not yet been identified ; they may be Spondylus 
(striata). Terebratulina striata appears in Norton pit. It is 
found everywhere in the chalk. Inoceramus labiatus is found 
in Falmer Bottom, Norton pit, Balsdean, and Bevendean. 
From its great abundance, mostly in casts, it is an excellent 
guide that you are either in the zone above or this. There are 
several species of Jnocerami in Balsdean and Norton pits. 
Inoceramus cuvieri can be recognised, but the others, being 
mostly casts, are difficult to determine. Ostrea hippopodium is 
found in Balsdean; it is more common in the upper zones. 
Terebratula carnea and Terebratula semi-globosa are very abundant 
in Bevendean and Balsdean pits. 
Zone 10, Grey Chalk.—A very small exposure on the 
Lewes Road, north of the Dyke near Fulking represents the 
upper part of the zone. The name-fossil Holaster sub-globosus 
and Terebratulina carnea were found; the original Holaster 
sub-globosus was so damaged that I will have to place alongside 
a fine specimen from the grey chalk of Folkestone. 
Summary of Results. 
The discovery of a Zone of Uintacrinus and Micraster cor- 
anguinum in Kemp Town Quarry and the Dyke, of Micraster cor- 
testudinarium on the Balsdean Road, of Holaster planus at the 
top of Bevendean Pit, of Terebratulina yracilis in Saddlescombe, 
