412 
OLIGOCENE FOSSILS. 
The Bembridge series, of which PliDwrbis discus Edwards is per- 
haps the most characteristic fossil, is exhibited in the cliffs of Whitecliff 
Bay, along the shore and low cliffs under Hempstead Hill, at Sconce, 
at the crest of Headon, and at a few inland limestone quarries. 
The series of freshwater marls are separated by a marine bed from 
the limestone band which contains teri’estrial puhuonate remains as 
well as fossilized Vivipara-, Plcmorhes, and Limnwoo. 
The Hempstead beds are the uppermost of the series and have been 
almost obliterated by the enormous amount of denudation to which 
they have been subjected, the only remnants of this series being at 
Hempstead Hill, near Yarmouth, Isle of Wight. They are constituted 
by clay and shaly marls, and were deposited under alternating marine 
and tluviatile conditions. 
The fossil remains from the Oligocene beds are very numerous and 
comprise : 
Tr:STACKLIJD.E. 
GlaniUna brevis Edwards MS., 
couvcj’u (S. V. Wood), 
cosfcl/afd (J. Sow.), 
— V. ((bbrcvirifa (Edwards). 
helicid.e. 
Ilyalinia cVin’bani (Edwards), 
Icia (Newton & Harris), 
scoiieietisis (Newton & Harris), 
Helix etheridgei Edwards ^IS., 
headuuen sis Ed wards, 
morrisi S. V. Wood, 
oeelusa Edwards, 
omphdlits Edwards, 
pseiido-globosa ()rl)i<,my, 
pscudn-labgrintlncd Sandberger, 
.9 ubldbgrin thicd { Eil wards), 
tropifevd Edwards, 
vecticiisis E( 1 wards. 
liULlMUI.ID.E. 
Amphidronws clliptiens (.J. Sow.), 
lavolongns (Hoiibec), 
PUriD.E. 
Pupa orgza Edwards, 
iiudti.spii-dta Newton & Harris, 
perdentdtd Edwards, 
vecticiisis Edwards MS., 
Vertigo dubid (Newton & Harris), 
Cldusilid stridtdld Edwards, 
Megaspira Newt. & Harris, 
STKNOGYKID.E. 
Aelddind eglindrivd Edwards MS., 
Alia headonensis (Newton Harris), 
SUCCIXEimE. 
Sueeincd edircirdsi Eorbes, 
im persp icua E d w ard s , 
gjcrsjiicda S. V. M ood, 
s 2 Xirndcensis Desliayes, 
LIMNiElD^. 
Lininwd diigiista Edwards, 
arenidarin Desli., 
cauddtd Edwards, 
— V. dbbrcvidta Edwards, 
eincta Edwards, 
columclldris J. de C. Sow., 
eonvexd Edwards, 
eostellata Edwards, 
fdbnld Hrongniart, 
f usiforinis . Sow., 
— V. deformis Edwards, 
gibbosula Edwards, 
headonensis Newton & Harris, 
^ SCO B ron gn i ar t , 
— V. distorta Edwards, 
— V. clongatn de Serres, 
minima J. Sow., 
mixta Edwards, 
ovum Brongniart, 
pgramided is Brongniart, 
recta Edwards, 
snblatd Edwards, 
siibquadrata Edwards, 
snleata Edwards, 
tenuis Edwards, 
tumida Edwards, 
Segment ina obtusa (J. Sow.), 
Planorbis biungulatus Edw'ards, 
discus Eilwards, 
elcgans Edwards, 
euomphed'us J. Sow., 
goniobasis (Sandberger), 
hemistomai. Sow., 
lens Brongniart, 
oligyratus Edw’ards, 
plaiystoma Edwards, 
soivcrbyi Bronn, 
tropis Edwards, 
