1869.1] SEARLES WOOD—BOULDER-CLAY. 95 
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Name of the Shell. = \t5 |S 
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Leda caudata, Donov. ....ecce00s- meal bealti hae 
Cardium edule, L277. ...see.soee- |x! x 
islandicum, Lin. ..ccciees|-+-|-- | ? 
—— norvyegicum, Spengl. ...... woe] % 
—— grenlandicum, Chemn. ...|*|*| ... 
Cardita analis, Phil........ccceeee- Selanne 
—— scalaris, Leathes ...........- voe| % 
Lucina borealis, Zinn. .......... sol £22 I: 660 
Astarte borealis, Chemn. ........- % || 3 
, var. Withami......... sesfeee| 3 
—— ——,, var. semisulcata...... see ? 
—— mutabilis, 8S. Wood ......... seeleos| 36 
suleata, Dacosta ...........- |X] x 
—— , var. elliptica ......... wee] | x 
crebricostata, Forbes ...... eoeliseal lene 
compressa, Montz.............)*|*| * 
Woodia digitaria, Linn. .........|---|*| ... 
Tapes virgineus, Linn.......... i 
pullastra, W. Wood...... ; 
Cyprina islandica, Linn. ......... x| x 
rustica, J. Sow.............00+ ral tbr ced eae 
Venus fluctuosa, Gould........+... Heelies ee 
fasciata, Donovan..........++ Babli tl Meas 
ovata, Penn........+. deeaenace we | % 
Tellina lata, Gael. .........0.00 P| x 
—— obliqua, J. Sow. ............ x| % 
fia 
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| 522 
2) £23 
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*| BA 
*|B, A,S 
A. 
B. 
* As 
O 
*| O,P 
x |B, A, 8. 
* A. 
O. 
A. 
* O. 
x | B, A, 8. 
Me Be 
an A. 
*| 3B, A. 
x S. 
*| B,S 
*|B,A,S 
* O. 
=e | NG AG 
*| BS 
* Sv 
% A. 
* O. 
Remarks. 
L. minuta of ‘ Crag Mollusca.’ 
Given in Woodward’s list; but 
the fragments in the British Mu- 
seum are not sufficient for reli- 
able identification. 
xBreydon (Bradwell cutting), sec. 
Jeff. vol. ii. p. 296 of Brit. Moll. 
The Bridlington shell called C. sca- 
laris by Forbes, in Mem. Geol. 
Survey for 1846, was most pro- 
bably only C. analis. 
Probably represented by C. ventri- 
cosa, Gould, on N.W. coast of 
America. 
On authority of Woodward’s list 
only. Believed by 8. Wood to 
be only A. sulcata, var. elliptica. 
Rare in Crag. Common in Mid- 
dle Glacial. Mediterranean, sec. 
Jeffreys. 
xBradwell. Given from Crag only 
on authority of Woodward's 
Norwich Crag list. 
“North of Hebrides, in cold area, 
550 fathoms,” sec. Jeffreys. 
Two imperfect specimens from 
Middle Glacial. 
Hinge-fragments of one or other 
or both of these species common 
in Middle Glacial; but which of 
them, cannot be said. Both in 
Crag and B, 8. 
* Bradwell. 
Abundant in Middle Glacial. Ja- 
pan, sec. Jeffreys. 
Profuse in Coralline Crag; rare in 
Red: three imperfect specimens 
from Middle Glacial. 
T. calcarea of Wahl. A few doubt- 
ful fragments only from Mid- 
dle Glacial. Rare in Red Crag, 
profuse in Fluvio-marine Crag 
and Chillesford beds. 
Profuse in all Crag beds and in 
Lower Glacial; not common in 
Middle Glacial. Only one speci- 
men known from Bridlington. 
