32 BULLETIN 71, UNITED STATES NATIONAL MUSEUM. 



POLYSTOMELLA SUBNODOSA (Miinster). 

 Plate 14, fig. 8. 



Robulina subnodosa Munster, Neues Jahrb. fur Min., 1838, p. 391, pi. 3, fig. 61. 



Polystomella subnodosa Reuss, Sitz. Akad. Wiss. Wien, vol. 18, 1855, p. 240, 

 pi. 4, fig. 51a, b. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, 

 p. 734, pi. 110, fig. la, 6.— Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, 

 1894, p. 102, pi. 17, figs. 817-819.— Fornasini, Rend. Accad. Sci. 1st. 

 Bologna, vol. 2, 1897, pi. 1, fig. 12. — Millett, Journ. Roy. Micr. Soc, 1904, 

 p. 604.— Bagg, Proc. U. S. Nat. Mus., vol. 34, 1908, p. 165.— Sidebottom, 

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

 p. 16, pi. 5, fig. 6; vol. 54, No. 16, 1910, p. 30.— Bagg, Bull. U. S. Geol. 

 Survey, No. 513, 1912, p. 92, pi. 28, figs. 12a, b. 



Description. — Test composed of about 12 chambers in the last 

 formed volution, in face view about 2£ times as long as wide, the 

 periphery angled with a blunt keel, periphery very slightly if at all 

 lobulated, umbilical region umbonate, septal lines depressed and 

 evenly bridged: aperture an arched narrow opening at the base of 

 the apertural face. 



Diameter about 0.60 mm. 



Distribution. — The only previously recorded station for this species 

 is that given by Bagg, Albatross H 4508 in 495 fathoms. I have had 

 specimens collected in the Inland Sea of Japan, and from Albatross 

 D4875 in 59 fathoms off Japan in the eastern channel of Korea 

 Strait. It also occurred at D 3501 in 688 fathoms in Bering Sea. 



This makes a rather peculiar distribution for this species. 



POLYSTOMELLA CRISPA (Linnaeus). 



Plate 18, fig. 1. 



" Cornu Hammonis orbiculatum " Plancus, Conch. Min., 1739, p. 10, pi. 1, fig. 2. 

 Nautilus crispus Linnaeus, Syst. Nat., ed. 12, 1767, p. 1162. 



Polystomella crispa Lamarck, Anim. eans Vert., vol. 7, 1822, p. 625, No. 1. — 

 d'Orbigny, Foram. Foss. Bass. Tert. Vienne, -1846, p. 125, pi. 6, figs. 9-14. — 

 Williamson, Trans. Micr. Soc. London, vol. 2, 1849, p. 159, pi. 28; Rec. 

 Foram. Great Britain, 1858, p. 40, pi. 3, figs. 78-80.— Carpenter, Intr. 

 Foram., 1862, p. 278, pi. 16, figs. 4-6.— Parker and Jones, Philos. Trans., 

 vol. 155, 1865, p. 399, pi. 14, fig. 24; pi. 17, figs. 61a, b.— H. B. Brady, Rep. 

 Voy. Challenger, Zoology, vol. 9, 1884, p. 736, pi. 110, figs. 6, 7.— Silvestri, 

 Mem. Pont. Accad. Nuovi Lincei, vol. 9, 1893, p. 216, pi. 4, fig. 3.— Egger, 

 Abh. kon. bay. Akad. Wiss. Munchen, Cl. n, vol. 18, 1893, p. 432, pi. 20, 

 figs. 20, 21.— Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, 1894, p. 102, 

 pi. 17, figs. 820, 821.— Lister, Philos. Trans., vol. 186, 1895, p. 414, pi. 6, 

 figs. 1-3, 5-12; pi. 7, figs. 13-27; pi. 8, figs. 28-32.— Flint, Ann. Rep. TJ. S. 

 Nat. Mus., 1897 (1899), p. 338, pi. 80, fig. 3.— Millett, Journ. Roy. Micr. 

 Soc, 1904, p. 603, pi. 11, fig. 2. — Sidebottom, Mem. and Proc. Manchester 

 Lit. and Philos. Soc, vol. 53, No. 21, 1909, p. 15; vol. 54, No. 16, 1910, p. 30.— 

 Bagg, Bull. U. S. Geol. Surv., No. 513, 1912, p. 90, pi. 27, figs. 13-20; pi. 

 28, figs. 1-6. 

 Description. — Test composed of twenty or more chambers in the 

 last formed volution, in face view about twice as long as wide, len- 



