1-2 OLAF HOLTEDAHL. [SEC. ARCT. EXP. FRAM 



land. oh>er\ed quite prominent spines in this older specimen too. This 

 Gotland-specimen differed from the Arctic specimen chiefly in having less 

 numerous tahulae, the distance he t ween two of them generally equalling 

 the width of the cell. The closeness of the tahulae is very conspicuous 

 in the Ellesmereland form as seen in pi. IV, fig. 6; the type specimen of 

 NICHOLSON may also have as many as 7 tahulae in the space of two lines. 



Two forms which probably may he regarded as identical with the 

 'in- here descrihed are the Favosites pyriforme HALL as descrihed 

 and depicted hy STUART WELLER l from the Decker Ferry Group of New 

 .ler-ey and hy SwARTZ 2 from the Keyser member of the Lower Helder- 

 herg of Maryland. 



The original Astrocerium pijrifonne HALL (Pal. New York. Vol. 2, 

 1S52. p. 123, pi. 34 a, figs, la 1 e) as early as in 1899 is placed by 

 L\MBE :! under Favosites kisingeri E. and H. 



HALL'S form with its very long spines seems also to he decidedly 

 different from the two forms just mentioned, and from the Arctic 

 species. 



Occurrence: B, upper part, point north of the Beautiful Valley, 

 Walrus Fjord. 



Favorites sp. 



A fragment of the uppermost highly convex portion of a very 

 regularly built Favositcs, that differs from the two preceding species, 

 i^ visible in a small piece of rock in the material. The nicely radiating 

 roralliles have mostly a hexagonal section with an average diameter of 

 about -1 mm. Karely, we observe smaller ones between. The tabulae 

 are not so closely arranged as in the previously mentioned species. Only 

 one or less occurs per mm. The pores in this specimen are discernable. 

 They are comparatively large, show an elevated outer rim, and are dis- 

 po-ed in two rows. 



On account of the fragmentary condition no specific determination 

 can be made with certainty. With the tendency to variation of the specific 

 characteristics of these Favosites-iorms it is evident that it is valueless 

 to make detailed identifications on very scanty material. 



Occurrence: B, upper part, over the fragment-limestone, valley 

 south of Borgen. 



1 (;.!. Survey <1 .\.-\\ .I.TM-V. vol. 13, ]9<i:;, p. 22(>, pi. 17, figs. 3-5. 

 ! GPD|. Snrv.-y i.f Mjirylaml. Lnuvr l)rvmii;ui. 11M3. p. 211, pi. 23, figs. 14. 

 <:.. M lrilmti<ms to Cimu.li.iu l' ;i |ji-..iil..l.igy. Vol. IV, Part I, 1890, p. (}. 



