FORAMINIFERA OF THE NORTH PACIFIC OCEAN. 33 



fathoms, a single specimen occurred, and it was found in material from 

 Nero stations 1012 in 1,932 fathoms and 1222 in 726 fathoms between 

 Guam and Yokohama. It also occurred in shallow water material off 

 Hakodate, Japan. 



This is a very common species in shallow water of the cooler parts 

 of the oceans, but little material from such localities was available in 

 this work. 



TRUNCATULINA VARIABILIS d'Orbigny. 



"Testae hammoniformes, plano-cochleatse, tuberosse articulatse, etc." Soldani, 

 Testaceographia, vol. 1, pt. 1, 1789, pp. 77-80, pis. 70-92. 



Tnincatulina variabilis d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 279, No. 8; 

 in Barker,Webb, and Berthelot, Hist. Nat. Isles Canaries, vol. 2, pt.2, "Forami- 

 niferes," 1839, p. 135, pi. 2, fig. 29.— Reuss, Denkschr. Akad.Wiss.Wien, vol. 

 23, 1864, p. 10, pi. 1, fig. 15.— Terquem, Mem. Soc. Geol. France, ser. 3, vol. 1, 

 Mem. 3, 1878, p. 20, pi. 1, fig. 18-25; vol. 2, 1882, p. 92, pi. 9 (17), figs. 22-25.— 

 H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 661, pi. 93, figs. 

 6-7.— H. B. Brady, Parker, and Jones, Trans. Zool. Soc, vol. 12, 1888, p. 227, 

 pi. 45, fig. 17.— Ter- 

 rigi, Mem. R. Accad. 

 Lincei, ser. 4, vol. 6, 

 1889, p. 116, pi. 7, 

 figs. 8, 9. — Burrows, 

 Sherborn, and Bai- 

 ley, Journ. Roy. 

 Micr. Soc, 1890, p. 

 562, pi. 11, fig. 22.— 

 Egger, Abh. kon. Fig. 35.— Truncatultna variabilis d'Orbigny. x 100. 



bay. Akad. Wiss. 



Munchen, CI. n, vol. 18, 1893, p. 404, pi. 16, figs. 57-59, 63, 64«— Jones, Pal. 

 Soc, 1896, p. 309, pi. 6, fig. 23.— Mlllett, Joum. Roy. Micr. Soc, 1904, p. 

 492.— Chapman, Trans. New Zealand Inst., vol. 38, 1905, p. 103. — Sidebot- 

 tom, Mem. and Proc Manchester Lit. and Philos. Soc, vol. 53, No. 21, 1909, 

 p. 2, pi. 1, figs. 5, 6; pi. 2, figs. 1-3. — Chapman, Proc. Roy. Soc. Victoria, 

 vol. 22, 1910, p. 285. — Sidebottom, Mem. and Proc. Manchester Lit. and 

 Philos. Soc, vol. 54, No. 16, 1910, p. 27.— Bagg, Bull. U. S. Geol. Survey, 

 No. 513, 1912, p. 84, pi. 24, figs. 1-4; pi. 25, figs. 4, 5. 



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

 1894, p. 88. 



Description. — Test adherent, elongated, irregular in shape, dorsal side 

 convex, ventral side in early portion concave, later variously shaped; 

 peripheral margin rounded; chambers numerous, early ones coiled, 

 later ones linear, biserial or irregularly arranged to form an elongate 

 test; sutures somewhat depressed, distinct; wall coarsely punctate. 



Length up to 1.75 mm. 



Distribution. — Apparently this species has not previously been 

 recorded from the North Pacific. I have had material from Albatross 

 station H2923 in 392 fathoms off the Hawaiian Islands and from Nero 

 station 1310 in 518 fathoms between Guam and Yokohama. 



This species presents various modifications of shape in its later 

 growth. 



