FORAMINIFERA OF NORTH PACIFIC OCEAN. 83 



Description. — Test free, composed of a linear series of chambers, 

 joined end to end in a nearly straight line, sometimes slightly curved 

 or irregular but not coiled, wall coarsely arenaceous, chambers 

 undivided, aperture simple and terminal. 



This genus as now modified includes the multiple chambered 

 uniserial arenaceous forms with undivided chambers and a single 

 oral aperture. 



REOPHAX SCORPIURUS Montfort. 



"Orthoceras" ?, Soldani, Testaceographica, vol. 1, 1795, p. 239, pi. 162, fig. k. 



Reophax scorpiurus Montfort, Conch. Syst., vol. 1, 1808, p. 330, 83 me genre. — 

 W. B. Carpenter, The Microscope, 6th ed., 1881, p. 564, fig. 321c— II. B. 

 Brady, Denkschr. kais. Akad. Wiss. Wien, vol. 42, 1881, p. 99. — Haeusler, 

 Quart. Journ. Geol. Soc, vol. 39, 1883, p. 27, pi. 2, fig. 7.— II. B. Brady, 

 Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 291, pi. 30, figs. 12-17.— Balk- 

 will and Wright, Trans. Roy. Irish Acad., vol. 28, 1885, p. 328, pi. 13, figs. 

 5 a, b. — Haeusler, Neues Jahrb. fur Min., Beil., vol. 4, 1885, p. 9, pi. 1, figs. 

 9-16.— A. Agassiz, Bull. Mus. Comp. Zool., vol. 15, 1888, p. 163, fig. 495 (in 

 text). — H. B. Brady, Parker, and Jones, Trans. Zool. Soc. London, vol. 

 12, 1888, p. 217, pi. 41, fig. 10.— Haeusler, Abh. schweiz. pal. Ges., vol. 

 17, 1890, p. 27, pi. 5, figs. 23, 24.— J. Wright, Proc. Roy. Irish Acad., vol. 

 1, 1891, p. 467.— Chapman, Journ. Roy. Micr. Soc, 1892, p. 320, pi. 5, figs. 4, 5 — 

 Egger, Abh. kon. bay. Akad. Wiss. Miinchen, vol. IS, 1893, p. 257, pi. 4, fig. 

 18; pi. 5, figs. 45, 46. — Goes, Kongl. Svensk.Vet. Akad. Ilandl., vol. 25, no. 

 9, 1894, p. 24, pi. 5, figs. 158-163; pi. 6, figs. 164-167 [not 168-171].— Chap- 

 man, Proc. Zool. Soc. London, 1895, p. 14. — Goes, Bull. Mus. Comp. Zool., 

 vol. 29, 1896, p. 26.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 273, pi. 

 16, fig. 3. — Millett, Journ. Roy. Micr. Soc, 1899, p. 254. — Guppy, Proc. 

 Victoria Inst., Trinidad, vol. 2, 1902, p. 3, pi. 2, fig. 2.— Chapman, Trans, 

 and Proc New Zealand Inst., vol. 38, 1906, p. 84.— Bagg, Proc. U. S. Nat. 

 Mus., vol. 34, 1908, p. 126. 



Nodosaria (Dentalina) scorpionus d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 

 255, No. 40. 



Lituola scorpiurus H. B. Brady, Trans. Linn. Soc London, vol. 24, 1864, p. 

 467, pi. 48, fig. 5.— Nat. Hist. Trans. Northumberland, vol. 1, 1867, p. 96, 

 pi. 12, fig. 3.— Dawson, Can. Nat., vol. 5, 1870, p. 177, fig. 4.— Parker, 

 Jones, and H. B. Brady, Ann. Mag. Nat. Hist., ser. 4, vol. 8, 1871, p. 159, 

 pi. 9, fig. 29.— Dawson, Amer. Jour. Sci., vol. 1, 1871, p. 206, fig. 4; Ann. 

 Mag. Nat. Hist., ser. 4, vol. 7, 1871, p. 86, fig. 4. 



Lituola nautiloidea, var. scorpiurus Parker and Jones, Trans. Roy. Soc Lon- 

 don, 1865, p. 407, pi. 15, fig. 48 a, b— II. B. Brady, Pal. Soc. Monogr., vol. 

 30, 1876, p. 63, pi. 8, fig. 7.— Schwager, Boll. Reg. Com. Geol. Ital., vol. 

 8, 1877, p. 26, fig. 87. — Butschli, in Bronns Klassen und Ordnungen des 

 Thierreichs, vol. 1, 1880, p. 192, pi. 5, fig. 18. 



Description. — Test consisting of a number of chambers, rapidly 

 increasing in size as added, early chambers irregularly arcuate, later 

 ones more nearly straight, surface rough, of fairly large sand grains, 

 aperture simple, with a short neck, small. 



Length 0.5-2 mm. 



