298 L. F. Spath—Ammonites from Spitsbergen. 
Valanginian, whereas the others are doubtfully referred to the 
Albian. The stratigraphical information suppled unfortunately 
consists only of the data here copied from the labels attached to the 
specimens. The localities are mentioned in Sir Martin Conway’s 
well-known book, The Furst Crossing of Spitsbergen, and mostly 
recorded on the map appended to that work and to his paper in the 
Geographical Journal.2 Since the mineral wealth of Spitsbergen is 
now attracting considerable attention,*® it may be hoped that 
additional material and more extensive stratigraphical observations 
will soon be available. 
After this paper was completed, Professor J. W. Gregory kindly 
sent the writer his “Note on the Sequence across Central Spits- 
bergen, from Advent Bay to Agardhs Bay”, published herewith, 
so that it has been possible to insert some references to the beds 
mentioned in Professor Gregory’s sections. But in view of the fact 
that some of the specimens were collected from loose blocks, that 
there are differences in the nomenclature that the writer is unable 
to settle, also that most of the specimens collected by Professor EH. J. 
Garwood, especially the Jurassic ones, come from other localities, 
a complete list of the Ammonites, arranged according to the sections 
mentioned by Professor Gregory, cannot be given. The table at the 
end of the chapter on the Triassic portion of the Ammonite fauna, 
however, 1s an attempt at a correlation for that period. 
I. Triassic. 
The great majority of Ammonites belong to the Lower Trias, 
and can be eles to the following genera :— 
Arctoceras * Prionites 
Olenekites ? Anasibirites 
Flemingites ? Keyserlingites 
Gyronites ? Gen. nov. (Danubites 2, 
Goniodiscus Xenodiscus ?) 
Tellerites Prosphingites ? 
The last two are represented by 100 and 66 specimens respectively ; 
Arctoceras by 82. The latter genus includes, in addition to a number 
of less definitely identifiable species, seven forms described by 
1 1897, J. M. Dent & Co., London. 
2 Vol. ix, No. 4, April, 1897, pp. 353-68, map, Pp. 472. 
3 See “ Recent’ Developments in Spitsbergen ” » by Dr. R. N. Rudmose 
Brown: Scott. Geogr. Mag., vol. xxxvi, April, 1920, No. 2, pp. 111-16; also 
the same author’s ‘‘ The Coal-fields of Spitsbergen ’ igs Nature, October 95 
1919. The summer population of Spitsbergen (1919) is estimated at 1,000. 
4 Hyatt, 1900 (in Zittel’s Text-book of Paleontology, vol. i, p. 559), non 
Arctoceras, J. Bohm, 1899 (‘‘ Ub. Triad. Foss. v. d. Biren-Insel”’: Zeit. 
Deutsch. Geol. Ges., vol. li, p. 326). In 1904 J. Béhm (Ub. d. Obertriad. 
Fauna d. Baren-Insel’’: Kon. Svensk. Vet.-Akad. Handl., vol. xxxvii, No. 3, 
1903, p. 61) withdrew his Arctoceras in favour of Hyatt’s term, and replaced 
it by another generic name for his Carnian group. 
