TROPICAL PACIFIC FORAMINIFERA OF ALBATROSS 73 



VERTEBRALINA STRIATA d'Orbigny 



Plate 16, Figures 8-10 



Vertebralina striata d'Oebigny, Ann. Sci. Nat., vol. 7, p. 283, No. 1, Modeles, 

 No. 81, 1826. — Williamson, Rec Foram. Great Britain, p. 90, pi. 7, figs. 

 196a, &(=197, 198), 1858. — W. B. Carpenter, Parker, and Jones, Introd. 

 Foram., p. 72, pi. 5, figs. 17-25, 1862. — Parker, Jones, and H. B. Brady, Ann. 

 Mag. Nat. Hist., ser. 3, vol. 16, p. 32, pi. 1, fig. 1, 1865 ; ser. 4, vol. 8, p. 239, 

 pi. 8, fig. 27, 1871.— Schwager, Boll. R. Com. Geol. Ital., vol. 8, p. 27, pi., fig. 

 106, 1877. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, p. 187, pi. 12, 

 figs. 14-16, 1884. — A. Silvestri, Atti Accad. Sci. Acireale, vol. 7, p. 22, 

 1896. — Millett, Journ. Roy. Micr. Soc, p. 607, pi. 13, fig. 1, 1898. — Side- 

 bottom, Mem. Proc. Manchester Lit. Philos. Soc., vol. 48, no. 5, p. 18, 1904. — 

 Dakin, Rep. Pearl Oyster Fish. Ceylon, p. 231, 1906. — Chapman, Journ. 

 Quekett Micr. Club, ser. 2, vol. 10, p. 125, 1907. — Sidebottom, Mem. Proc. 

 Manchester Lit. Philos. Soc, vol. 54, no. 16, p. 6, 1910. — Heron-Allen 

 and Earland, Journ. Roy. Micr. Soc, p. 305, 1911; Trans. Zool. Soc. Lon- 

 don, vol. 20, p. 587, 1915.— Cushman, U. S. Nat. Mus. Bull. 71, pt. 6, p. 

 38, pi. 22, figs. 3, 4, 1917.— Martinotti, Atti Soc Ital. Sci. Nat, vol. 59, 

 p. 327, fig. 170 (in text), 1920.— Cushman, U. S. Nat. Mus. Bull. 100, vol. 

 4, p. 414, 1921. — Heron-Allen and Earland, Bull. Soc Sci. Hist. Nat. 

 Corse, 1922, p. 123. — Cushman, Carnegie Inst. Washington Publ. 342, p. 

 58, 1924; U. S. Nat. Mus. Bull. 104, pt. 6, p. 96, pi. 22, figs. 6a, 6, 1929. 



Test much compressed, early portion close coiled, later uncoiling 

 in a series of low, broad, uniserial chambers; sutures distinct, de- 

 pressed; surface ornamented by fine longitudinal striae; aperture 

 elongate, irregular, the lip on one side being shorter than on the 

 other, making the aperture really on the ventral side of the test, lip 

 smooth, ends rounded and not projecting. Length, 0.6-1.2 mm.; 

 breadth, 0.5-0.7 mm.; thickness, 0.2-0.25 mm. 



This is a common species in the material, rather widely distributed, 

 and while it varies somewhat in form, because the early stages are 

 close coiled and the later ones somewhat uncoiled, nevertheless 

 the ornamentation, which is very constant, will serve to distinguish 

 the species from any other of those allied to it. There are occa- 

 sional specimens that tend toward V. reticulosa Cushman described 

 from the Philippines, but none of them has these characters very 

 strongly developed. D'Orbigny's model of this species shows a much 

 uncoiled specimen with the sides in the adult nearly parallel. Such 

 specimens are not common, but are occasionally found in large series 

 of specimens. Most of those found are usually in the early coiled 

 stages. There are specimens in the present collection from Mokaujar 

 Anchorage, Fiji; Levuka, Fiji, 12 fathoms; Viva Anchorage, Fiji, 

 3 fathoms; and off Nairai, Fiji, 12 fathoms. Specimens also occur 

 off Vavau Anchorage, Tonga Islands; off Rotonga (= ?Rarotonga) ; 

 and Guam Anchorage, Ladrone Islands, in 21 fathoms. 



