Foraminifera 1 1 M 



Polystomella arctica Parker and Jones. 



Polystomella arctica Parker and Jones, in Brady, Trans. Linn. Soc., London, 

 vol. 24, 1864, p. 471, pi. 48, fig. 18.-Brady, Rep. Voy. Challenger, Zoology, 

 vol. 9, 1884, p. 735, pi. 110, figs. 2-5. Awerinzew, Mem. Acad. Imp. Sci., 

 St. Petersburg, ser. 8, vol. 29, No. 3, 1911, p. 26. Heron-Allen and Ear- 

 land, Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 146. 



A single but typical specimen was obtained at Station 43a, and Tfc was 

 common at Station 29j. From all the records this seems to be a circumpolar 

 species confined to the Arctic. Brady records it as far north as latitude 82 

 27' N., in Smith sound, also from Baffin bay, Davis strait, and from the re- 

 gion of Spitzbergen, Franz Josef land, and Nova Zembla. It is known from 

 the Siberian Arctic, recorded by Awerinzew. The work of Heron-Allen and 

 Earland has extended the distribution to certain localities as far south as the 

 east coast of Ireland. 



Polystomella subnodosa (Munster.) 



Robulina subnodosa Munster (fide Roemer), Neues Jahrb. fur. Min., 1838, p. 



391, pi. 3, fig. 61. 

 Polystomella subnodosa Reuss, Sitz. Akad. Wiss. Wien, vol. 18, 1855, p. 240, 



pi. 4, fig. 51, a, b. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 



1884, p. 734, pi. 110, fig. 1 a, b. 



Several specimens at station 29j. I am referring to this species certain 

 specimens found at this station. They are of the form and size of P. subnodosa, 

 but like other arctic species of the genus there are developed double rows of 

 pores along the sutures. This is one of the species recorded by Awerinzew 

 from the Siberian Arctic. It may prove to be distinct -from the form referred 

 to this species from lower latitudes. 



Cornuspira foliacea (Philippi.) 



Orbis foliaceus Philippi, Enum. Moll, Siciliae, vol. 2, 1844, p. 147, pi. 24, fig. 26. 



Spirillina foliacea Williamson, Rec. Foram. Great Britain, 1858, p. 91, pi. 7, 

 figs. 199-201. 



Cornuspira foliacea Carpenter, Parker and Jones, Introd. Foram., 1862, p. 68, 

 pi. 5, fig. 16. H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 199, pi. 11, figs. 5-9. Goes, Kongl/Svensk. Vet. Akad. Handl., vol. 25, 

 1894, p. 106, pi. 18, fig. 834. Cushman, Bull. 71, U. S. Nat. Mus., pt. 6, 

 1917, p. 24, pi. 1, fig. 1, pi. 2, fig. 1. Awerinzew, Mem. Acad. Imp. Sci., 

 St. Petersburg, ser. 8, vol. 29, No. 3, 1911, p. 14. 



Specimens were picked out by the collector, giving clean examples for 

 study, from stations 27s, 41, and 41c. I found a few young specimens in washing 

 the material from stations 29gr and 29j. The large, well-developed specimens 

 are filled with a yellowish brown protoplasm. The test in these Arctic specimens 

 is thicker and heavier than those from farther south, and the flaring condition 

 of the test is not so early taken on. The largest specimen measured 10mm. in 

 length, which seems to be a record for the species. Brady recorded the species 

 from north of Smith sound and from Davis strait. Awerinzew records it from 

 the Siberian Arctic, and Goes from Spitzbergen. Pearcey records it from the 

 Antarctic, and it has been found in all the great ocean basins, but is much more 

 common in the Atlantic than in the Pacific. 



