36 
north-east from Bevendean Farm. 4Holaster placenta is also 
found, and Micraster praecursor. They may represent the 
junction with the next zone. 
Zone 8.—Terebratulina gracilis is much more satisfactorily 
exposed than the last three zones. Hitherto unknown in this 
district, and found within three miles of Brighton, and at an 
elevation of 400 feet above the highest zone on the coast, the 
two principal exposures are at Saddlescombe Quarry, 500 feet 
above sea level, and at a place named Falmer Bottom on the 
Gin. map. The exposure at Falmer Bottom begins at the 450 
level, on south side, and is found in chalk turned up by the 
plough, in an attempt to take in a few extra yards of the crest of 
the hill. I have proved the zone also by digging into the hill side, 
and found sixteen in an hour. At Saddlescombe the exposure is 
large, showing sixty feet of vertical chalk. The name-fossil is 
abundant with a few Rhynchonella cuviert. It is found more 
sparingly in Bevendean, Iford, Balsdean, and Norton Pit, under 
Falmer Bottom, under the junction with the zone. 
Terebratulina gracilis is one of the most delicate and 
beautiful fossils found in the chalk, or any other formation. 
It is very small, with one of the valves flat and fan-shaped. 
The other valve is slightly raised. It is difficult to find, unless 
the mealy weathering of the chalk has been washed off by 
heavy rains. The associated fossils of this zone are widely 
different from those of the zones above. One of the most 
striking changes is the absence of Lchinocorys vulgaris 
(Ananchytes ovata), so predominant in the upper zones of the 
chalk. The presence of small Ammonites, altogether absent in 
the higher zones, the absence of Ventriculites, and the rather 
more frequent appearance of Univalves, all indicate a shallower 
sea. Discoidea dixoni is the only echinus, along with a form 
of Echinoconus conicus, that are found in this zone. The 
former is not so common, perhaps, owing to the small exposure. 
Inoceramus labiatus is found abundantly. The other charac- 
teristic fossils are Cyphosoma corallare, two undetermined 
species of Inoceramus, Terebratula carnea, Terebratula semi- 
globosa, Tooth of Enchodus Lewesiensis, and many scales of 
Beryx, a fish of much interest, as it still survives in the deep 
waters of the present seas. 
Zone 9.—Rhynchonella cuvieri. A marked change in the 
character of the chalk is found in this zone. It is hard, of 
a darker colour, with dark nodules and streaks, indicating a 
still shallower water during the deposit. This zone is repre- 
sented in two small pits near Bevendean Farm and at 
Norton Farm, distant from the former two and three quarter 
miles in an easterly direction, and about the same elevation 
250 feet above the sea level; also in the lower part of Saddlescombe 
Pit. The name-fossil is a small Rhynchonella. It is common in 
