FOEAMINIFERA OF THE NORTH PACIFIC OCEAN. 35 



TRUNCATULINA HAIDINGERII (d'Orbigny). 



Plate 13, fig. 5; plate 28, fig. 1. 

 Rotalina haidingerii d'Orbigny, Foram. Foss. Bass. Tert. Vienne, 1846, p. 154, 



pi. 8, figs. 7-9. 

 Planorbulina haidingerii H. B. Brady, Trans. Linn. Soc. London, vol. 24, 1864, 



p. 469, pi. 48, fig. 11. 

 Truncatulina haidingerii Reuss, Sitz. kais. Akad. Wiss. Wien, vol. 55, 1867. p. 28. — 



Terrigi, Mem. Accad. Lincei, ser. 4, vol. 6, 1889, p. 118, pi. 8, figs. 7-9. — 



Egger, Abh. kon. bay. Akad. Wiss. Munchen, 01. n, vol. 18, 1893, p. 401, pi. 



16, figs. 25-27.— Liebus, Jahrb. k. k. geol. Reichs., vol. 52, Heft 1, 1902, p. 90, 



fig. 4. — Mil lett, 



Journ. R o y . M i c r. 



Soc, 1904, p. 493.— 



Chapman, Trans. 



New Zealand Inst., 



vol. 38, 1905, p. 104; 



Journ. Quekett Micr. 



Club, ser. 2, vol. 10, 



1907, p. 137— Bagg. a be 



Proc.U. S. Nat. Mus., Fig. 37.— Truncatulina haidingerii (d'Orbigny). (Adapted 



vol.34 1908 p 157.— from d'Orbigny's type figure.) a, dorsal view; b, ven- 



C ha p m A n, ' Journ. TBAL ™; c ' SIDE VIEW - 



Linn. Soc, Zoology, vol. 30, 1910, p. 420. 

 Planorbulina /areata, var. haidingerii Parker and Jones, Philos. Trans., vol. 155, 



1865, p. 382, pi. 16, fig. 22a, 6. 



Description. — -Test free, biconvex; peripheral margin rounded; 

 chambers numerous, broad, about nine in the last formed coil; 

 sutures distinct but not depressed; wall smooth, finely punctate; 

 aperture a small opening at the ventral margin of the chamber. 



Diameter up to 1.2 mm. 



Distribution. — The only previously recorded station for this species 

 in the North Pacific is one recorded by Bagg, Albatross H4508 in 495 

 fathoms off the Hawaiian Islands. I have had the species from 

 H4878 in 84 fathoms, bottom temperature 51.9° F., D4946 in 39 

 fathoms, bottom temperature 68.7° F. and also from D4822 in 130 

 fathoms, bottom temperature 39.4° F., all off Japan. 



TRUNCATULINA AKNERIANA (d'Orbigny). 

 Plate 16, fig. 3. 



Rotalina akneriana d'Orbigny, Foram. Foss. Bass. Tert. Vienne, 1846, p. 156, 

 pi. 8, figs. 13-15. 



Truncatulina akneriana Reuss, Denksehr. kais. Akad. Wiss. Wien, vol. 25, 1866, 

 p. 160, No. 6.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 663, pi. 94, fig. Sa-c. — Egger, Abh. kon. bay. Akad. Wiss. Munchen, CI. 

 ii, vol. 18, 1893, p. 400, pi. 16, figs. 60-62.— Flint, Rep. U. S. Nat. Mus., 

 1897 (1899), p. 333, pi. 77, fig. 5.— Millett, Journ. Roy. Micr. Soc, 1904, p. 

 494. — Chapman, Trans. New Zealand Inst., vol. 38, 1905, p. 103. — Bagg, 

 Proc U. S. Nat. Mus., vol. 34, 1908, p. 157. — Chapman, Journ. Linn. Soc, 

 Zoology, vol. 30, 1910, p. 420. 



Planorbulina akneriana Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, No. 9, 

 1894, p. 89, pi. 15, figs. 778, 779. 



Description. — Test free, biconvex; peripheral margin broadly 

 rounded; dorsal surface convex at the margin, depressed or flattened 



