LOWER CHAL1C—MICROGKAPHIC STRUCTURE. 
301 
finest material was thus removed; the remaining coarse particles 
were then examined. The material was difficult to separate, small 
masses of shelly particles being frequently cemented together by 
calcite. 
In that from Arlesey the coarse shell-fragments consisted largely 
of prisms of Inoceramus, a few Echinoderm plates, and spines and 
short pieces of Bryozoa. Small fish teeth and scales were common, 
and ovoid and cylindrical coprolites numerous. 
The Heacham specimen gave somewhat similar results. Inoce- 
ramus-prisms were very abundant, but there were also a good 
many flat shell-fragments the derivation of which was obscure. A 
few fragments of Bryozoa occurred, but no Echinoderm-plates or 
spines were noted, nor were fish teeth or coprolites so common as 
in the Arlesey specimen. 
Foraminifera .—The following species were isolated from the 
washings and residues, and were identified by Mr. F. Chapman : — 
Arlesey, 
Bedfsh. 
Heacham, 
Norfolk. 
Speetou, 
Yorks. 
Rhizammina indivisa, Brady - 
x 
X 
Reophax nodulosa, Brady 
- 
- 
X 
Haplophragmium agglutinans ( d'Orb .) 
- 
X 
— 
„ glomeratum, Brady 
- 
- 
X 
x^imnodiscus incertus {d'Orb.) - 
- 
- 
X 
X 
,, charoides (J. and P.) 
- 
— 
— 
X 
Trochammina sp. - 
— 
— 
X 
Textularia trochus, d'Orb. 
- 
X 
X 
. — 
„ turris, d'Orb. - 
“ 
X 
— 
— 
,, gramen, d'Orb. 
- 
— 
X 
— 
Tritaxia tricarinata, Reuss 
- 
X 
— 
— 
Verneuilina sp. - 
- 
— 
X 
— 
Lituola placentula, Chap. 
- 
- 
— 
X 
Gaudryina pupoides, d'Orb. 
- 
X 
X 
X 
„ rugosa, d'Orb. 
- 
- 
- 
X 
„ sp., nov. - 
- 
— 
— 
X 
Bulimina brevis, d'Orb. - 
- 
X 
X 
X 
„ Presli, Reuss 
- 
X 
X 
X 
„ affinis, d'Orb. - 
- 
X 
— 
X 
„ obtusa, d'Orb. - 
- 
X 
— 
X 
,, Orbignyi, Reuss 
- 
X 
X 
— 
Lagena apiculata, Reuss - 
- 
X 
— 
— 
Nodosaria oligostegia, Reuss 
- 
— 
X 
— 
Marginulina robusta, Reuss 
4 . 
— 
X 
Oristellaria Italica, Defr. - 
- 
— 
X 
— 
„ planiuscida, Reuss - 
- 
X 
— 
— 
„ cultrata {Montf.) 
- 
X 
— 
— 
Globigerina cretacea, d'Orb. 
- 
X 
X 
— 
Trmicatulina lobatnla (IF. and /.) 
- 
- — 
— 
X 
„ Ungeriana (d'Orb.)- 
X 
— 
— 
Anomalina ammonoides (Reuss) 
X 
X 
— 
„ complanata, Reuss 
- 
X 
— 
— 
Glandulina cylindracea, Reuss - 
X 
— 
— 
