EIIRENBERG, MICROSOOPIC ORGANISMS. 571 



Of the minute terrestrial organisms of Spitzbergen are men- 

 tioned (p. 444) : — 



(1.) Nine Polygastrica [Infusoria and Arcella], revived at Berlin 

 among the Mosses from Spitzbergen ; also two living 

 Nematoidea (Anguillula), and one Rotifer {Callidina 

 alpium)^ and an egg. 

 (2.) Dead specimens : Difflugia, Eunotia, Fragilaria, Pin' 

 nularia (2), Stauroneis, and an Acarid. 



Synedia ulva and Spongolithis acicularis, possibly 



terrestrial forms, got from the sea in 1841, are to 



be added to the above. 



II. For the Second Voyage, 1869-70, 15 soundings of ooze 



and mud at sea off East Greenland (from 13 to 1,319 fathoms), 



and 2 muds at 3 fathoms, Sabine Island, are worked out (pp. 445, 



&c.). Also some gatherings from the land-surface, fresh water, 



and glaciers (pp. 450, &c.), giving chiefly Bacillaria, with some 



Arcellina and Cryptomonadina (especially from the Shannon 



Brook). Some greenish fine mud (possibly bird-droppings) from 



floating ice yielded Coscinodiscus and Spongolithis. 



The two muds from Sabine Isl., south of the glacier brook, gave 

 many Bacillaria and some Spongoliths. Altogether (both Expe- 

 ditions) Dr. Ehrenberg enumerates (marine) 82 Polygastrica 

 [Diatoms, &c.], 6 Polycystina^ 37 Polythalamia [^Foraminifera'], 

 and 43 Phytoliths, G-eoliths, and Zooliths [Sponge spicules, &c.] ; 

 (terrestrial) 68 Polygastrica [Diatoms, Infusoria, &c.], 2 Nema- 

 toids, 2 Rotifers, an Acarid, and some Phytoliths. 



Several new species are figured in the four plates. Those in 

 PI. I., Foraminifera, appear to be according to the nomen- 

 clature of English naturalists : — 



Fig. 1. Nonionina; 2. Planorbulina ; 3, Planorbulina ; 4. Dis- 

 corbina, D. rosacea ; 5. Pulvimdina auricula ; 6. Nonionina ; 

 7. Cassidulina; 8, 9. Pulvinulina, near P. Karsteni ; 10, 11. Dis- 

 corbina globular is ; 12. Virgulina Schreibersii, var. ; 13. Virgu- 

 lina Schreibersii, var.; 14. Pulvinuliiia punctulata ; 15. Planor- 

 bulina; 16. Discorbina, with germs; 17, 18. Planorbulina; 19. 

 Nodosaria. 



These ^resemble in their fades the North- Atlantic and Arctic 

 Foraminiferal Fauna figured and described in " Phil. Trans.," vol. 

 civ., 1865. {Above, pp. 192, 193.) 



Of the 16 figured species. Dr. Ehrenberg states (p. 464) that 12 

 are new and known only in the Polar zone. 



The following were obtained from more than 1,000 feet depth : — 

 Rotalia Hegemanni = Planorbulina. 



R. ibex = Planorbulina. 



R. microtis = Pulvulina auricula. 



Nonionina crystallina = Discorbina ? 

 Aristerospira discus = Discorbina Karste ni, i?an 



A. cucullaris = Discorbina globularis. 



Strophoconus hyperboreus = Virgulina Schreibersii, var, 

 Planulina profunda =: Planorbulina. 



Yellowish soft animal substance still filled the shells of Arista- 

 spira borealis (Nonionina), A. corticosa {Pulvinulina punctulata\ 

 and Nonionina Koldeweyi ; from 168-510 feet. 



