Notice of Memoirs.—J. C. Moberg—The Lias of Scania. 123. 
as in various genera of Nautiloid shells, the earlier part of the shell. 
was composed of a series of air-chambers, and that these chambers 
were periodically thrown off by natural truncation. 
“Judging by the form of the lower part of the specimen under 
discussion, it may be presumed that the series of deciduous septa 
was considerably elongated, and that truncation took place at 
successive periods. 
“The length of the specimen described is 48 mm., and its greatest 
breadth 18 mm. ‘ ; : 
“This very instructive fossil was found at Karlstein, together with 
numerous examples of the same species, in the limestones of band 
e2. It may be added that this specimen has been in our possession 
for many years, but it was not until the spring of 1875 that we 
- decided to have a longitudinal section made at its posterior extremity 
[see Fig. 1], which resulted in the discovery of three unequally 
spaced septa.” é 
Although, as we have seen, Barrande was the first to observe and 
to describe the deciduous septa of <Ascoceras in Bohemia, Dr. 
Lindstrém’s recent discovery of similar septa in Swedish specimens 
is extremely interesting, and warrants us in hoping that by still 
further research the initial chamber of Ascoceras may be brought to 
light, and thus complete our knowledge of this singular genus. 
NOTICES OF MEMOTRS. 
J.—Om Lras 1 Sypostra Skint. Ar Jon. Cur. Mopere. Kone. 
Svenska VETENSKAPS-AKADEMIENS HanpLiInGAR. Bor. 22, No. 6. 
StrockHoitm, 1888. 
On tHE Litas tn Souru-Hastern Scanta. By J.C. Mosere. 4to. 
86 pp. with One Map and Three lithographed Plates. 
ROM several places in the neighbourhood of Kurremolla in the 
south-east of Scania, Dr. Moberg discovered in beds of shale 
and sandstone associated in places with thin beds of coal, a series of 
fossils differing materially from those occurring in the Liassic strata 
of other parts of the same province. The forms which mostly belong 
to lamellibranchiate Mollusca are carefully described and figured in 
the present memoir. They number in all 64 species, of which 52 
are determinable, and 25 new forms. From a comparison of the 
known forms, the author concludes that the Kurremdélla Lias fauna 
represents the zones of Ammonites Bucklandi, Am. zipihus, and Am. 
Jamesoni, and that although there is a considerable number of 
fossils belonging to the Lower Lias, yet the most characteristic forms 
indicate that it is equivalent to the lowest part of the Middle Lias. 
It is thus on the same horizon as the Lias of the Island of Bornholm 
and higher in the series than the Liassic strata of the north-west of 
Scania. G.J.H. 
