
35 
found above the Uintacrinus beds, is small, without an alveolar 
cavity. It is a rather rare fossil. The other, Terebratulina 
rowet, goes up to the base of the Marsupites beds. It is very 
small, and, like Terebratulina gracilis, rather gregarious. 
Kingena lima is found, but is rather a rare fossil in this zone. 
Oreaster ocellata, a very rare Asteroid, I found at the eastern 
end of the zone in the inter-tidal chalk near Roedean Cottage. 
There is here a bed of much crushed crinoids, and should be 
carefully examined for good specimens. The JLchinocorys 
vulgaris of this zone are very characteristic. They are of great 
size compared with the zones above, and the upper surface is 
nearly flat in many specimens. 
The discovery of Uintacrinus in Kemp Town Railway 
quarry was quite unexpected. The distance from the Black 
Rock is about a mile, and the elevation at the base 200 feet, and 
Uintacrinus rises in quarry to 250 feet; so that we have in that 
distance the horizon above the sea level raised 250 feet. The 
denudation between the Golf House and Kemp Town was 
narrow near the coast, for we find at the Brighton and Preston 
Railway Stations the highest zones of the Sussex chalk 
Actinocamax ( Bel.) quadratus. At the end of the Paper, an 
attempt will be made to explain this gap and the extensive 
inland denudations. The next zone 5, Micraster cor-anguinun, 
is found at the base of the cliffs east of the Pumping Station. 
It overlaps a considerable part of the Marsupites beds above, and 
Uintacrinus under. It is well exposed at the base of both sides 
of the Kemp Town quarry. Lhynchonella plicatilis is common, 
but more abundant and of a larger size in the zone above. 
Good examples of Terebratulina striata are found here. This 
fossil is found in all the zones of the chalk and is found living 
at great depths in the present seas,—at 600 feet in the Hebrides 
and 7,000 feet off Japan. Micraster cor-anguinum is also 
found in the Railway cutting at Dyke Station,—-an elevation of 
500 feet. It is also found in a small hillside quarry at Norton 
Top,—elevation 600 feet. The zone in this district is every- 
where poorly exposed. 
Zone 6, Micraster cor-testudinarium.—This is a new dis- 
covery of the zone in this district. The only exposure, and it is 
a very slender one, is on the hill road, half a mile south of 
Balsdean Farm, towards Rottingdean. The exposure is so 
small that few examples have been found. One specimen has 
been described by Dr. Rowe as ‘‘an absolutely typical one.” It 
will be found among the specimens illustrating the zone. A few 
associated fossils are Terebratula carnea, Terebratula semt- 
globosa, Rhynchonella plicatilis. Epiaster gibbus may belong 
to this zone, but it was not found in siti. 
Zone 7.—Holaster planus (middle Chalk) is found at the 
top of Bevendean Pit, a small exposure one-sixth of a mile 
