80 Transactions. 
ACKNOWLEDGEMENTS. 
I am greatly indebted to the following gentlemen, who so kindly 
sent, or made available, material for examination: Drs. Benham, Benson, 
Cotton, Henderson, Marshall, and Messrs. Bartrum, Morgan, Murdoch, 
Speight, and Finlay; also to Messrs..G. №. Sturtevant and J. McDonald 
for valuable advice in the preparation of the figures. 
List oF PAPERS REFERRED TO. | 
BanrRUM, J. A., 1919. А Fossilferous Bed at Kawa Creek, Trans. N.Z. Inst., vol. 51. 5 
рр. 101-6. 
Fiscuer, P., 1887. Manuel de Conchyliologie. 
HEDLEY, C, 1916. Prelim. Index Moll. W. Aust. a 
—— 1918. Check-list Marine Fauna N.S. Wales, Jour. Roy. Soc. N.S.W., vol. 51, : 
p. M6 (Appendix). 
Hutton, Е. W., 1873. Cat. Tert. Moll. N.Z. 
MARSHALL, P., 1917. The Wangaloa Beds, Trans. N.Z. Inst., vol. 49, pp. 450-60. 
McCoy, F., 1875. Prodromus of Pal. Vict., dec. 2. Er 
OLIVER, W. В. B., 1915. The Mollusca of the Kermadec Islands, Trans. N.Z. Inst., r , 
vol. 47, pp. 509-68. x 
Smita, E. A., 1885. “Challenger” Report, Lamellib., vol. 13. E 
ollusca. 
: * .N o. 8. 
ТАТЕ, R., 1885. Trans. Roy. Soc. S. Aust., vol. 8, p. 138. = 
Woops, H., 1917. N.Z. Geol. Surv. Pal. Bull. No. 7. * 
ZITTEL, K., 1864. Reise der ** Novara," Geol. Theil I, 2. E 
Art. 3.—On the Discovery of the Liothyrella boehmi Greensand Band 
at Flume Creek, Waitaki Valley. 
By Professor James Park, F.G.S., F.N.Z.Inst., Dean of the Faculty of 
Mining at Otago University. = 
. [Read before the Otago Institute, 8th November, 1921 ; received by Editor, 12th November, 
1921; issued separately, Ist February, 1923.) T 
AT the lower end of Flume Gully, about a mile from Papakaio, the yellow- 
and-black speckled mineral tuffs which occupy the floor and lower sides 
of the valley are overlain conformably by a bed of compact yellowish- ^ 
brown caleareous sandstone about 40 ft. thick. The lower part of this | 
sandstone is highly glauconitic, and the upper part is intercalated with — 
nds and lenses of hard impure limestone 
_ At the junction of the tuffs and overlying glauconitic layer there is an 
irregular streak of gritty, pebbly conglomerate, ranging from almost nothing 
to about 2in. thick. The material in this grit-band is mainly flinty 
quartz and black minerals. In size it ranges from sand-grains to well | 
rounded pebbles 13 in. in diameter. E. 
The dip of the tuffs and associated calcareous sandstone is towards the — | 
north at a low angle. The course of Flume Gully is almost at right angles to 
the strike, which coincides approximately with the trend of the Waitaki Valley. 
On the west side of the gully, at a point about 100 yards above the big 
flume and 55 ft. above the floor of the valley, I discovered in the soft 
glauconitic band overlying the tuffs and in the pebbly band a rich marine 
_fauna, containing prominently, among many other shells, a profusion of well- 
preserved examples of the large and beautiful Liothyrella boehmi (Thomson). 
Md уз АЕ ОА 
gx ho CE get ЫЛЫА a E iE ЕТАН 
