G4 



BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



Micr. Soc, 1904, p. 501. — Chapman, Journ. Quekett Micr. Club, ser. 2, vol. 

 10, 1907, p. 139.— Bagg, Bull. U. S. Nat. Mus., vol. 34, 1908, p. 161.— 

 Chapman, Proc. Roy. Soc. Victoria, vol. 22, 1910, p. 288; Journ. Linn. Soc. 

 Zoology, vol. 30, 1910, p. 421.— Bagg, Bull. U. S. Geol. Surv., No. 513, 

 1912, p. 86, pi. 26, figs. 11-15, c. 



Description. — Test comparatively large, nearly equally convex on 

 the two sides; peripheral margin bluntly rounded; chambers numer- 

 ous, usually eight or nine in the last-formed whorl; sutures slightly 

 if sit all depressed; walls thickened and beautifully marked by clear 

 shell material, the chambers each with an ornamentation of an 

 irregular pattern of dots, lines, and irregular areas of clear shell 

 material on a white opaque background; aperture a narrow opening 

 at the umbilical end of the margin of the chamber with an occasional 

 secondary slit near the peripheral margin. 



Diameter up to 1.5 mm. 



Distribution. — Pulvinulina elegans seems to be common in the 

 North Pacific in spite of Brady's note that it is less common than 

 elsewhere. This is again probably due to lack of material. Goes 

 records it from 10 Albatross stations in the eastern Tropical Pacific 

 at depths ranging from 660 to 1,832 fathoms. Flint records it from 

 one Albatross station D2805 in Panama Bay, depth 51 fathoms. 

 From about the Hawaiian Islands Bagg records it from nine Albatross 

 stations, the depths ranging from 367 to 1,544 fathoms. I have 

 had material from several Albatross stations off the Hawaiian Islands, 

 depths ranging from 323 to 1,783 fathoms. It occurred at Albatross 

 station D2806 off the Galapagos Islands in 1,379 fathoms. In the Nero 

 material it has occurred frequently between Guam and Yokohama, 

 the depths ranging from 891 fathoms off Guam to 2,189 fathoms. 



PULVINULINA PARTSCHIANA (d'Orbigny). 



Rotalina partschiana d'Orbigny, Foram. Foss. Bass. Tert. Vienne, 1846, p. 153, 



pi. 7, figs. 28-30, pi. 8, figs. 1-3. 

 Pulvinulina partschiana Reuss, Sitz. Akad. Wiss. Wien, vol. 62, 1870, p. 36. — 



von Schlicht, Foram. Pietzpuhl, 1870, pi. 20, figs. 23-25, 29-31.— H. B. 



Brady, Rep. Voy. Chal- 

 lenger, Zoology, vol. 9, 1884, 

 p. 699, pi. 105, fig. 3a-c, 

 woodcut, fig. 21. — Egger, 

 Abh. kpn. bay. Akad. 

 Wiss. Munchen, CI. n, vol. 

 18, p. 410, pi. 17, fig. 43; 

 pi. 18, figs. 25-27.— Flint, 

 Rep. IT. S. Nat. Mus., 1897 

 (1899), p. 331, pi. 75, fig. 

 3. — Millett, Journ. Roy. 

 Micr. Soc, 1904, p. 502.— 

 Bagg, Bull. U. S. Nat. 



Mus., vol. 34, 1908, p. 162. — Chapman, Proc. Roy. Soc. Victoria, vol. 22, 



1910, p. 287. 

 Placentula partschiana Berthelin, Bull. Soc. Geol. France, ser. 3, vol. 11, 1882, 



p. 16. 



Fig. CO.— Pulvinulina partschiana (d'Orbigny). o, dor- 

 sal view; 6, sroE view; c, ventral view. (After 

 d'Orbigny's type figure.) 



