FOEAMINIFERA OF THE ATLANTIC OCEAN 

 Nonion pompilioides — Material examined 



1 Meters. 



NONION SCAPHUM (Fichtel and Moll) 



Plate 2, figures 3, 4 



Nautilus scapha Fichtel and Moll, Test. Micr., 1798, p. 105, pi. 19, figs. 

 d-f. '0 



Nonionina scapha H. B. Brady, Nat. Hist. Trans. Northumberland and 

 Durham, vol. 1, 1865 (1867), p. 106, pi. 12, figs. 10 a, 6.— Terrigi, Atti 

 Accad. Pont. Nouvi Lincei, vol. 35, 1883, p. 202, pi. 4, fig. 47.— H. B. 

 Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 730, pi. 109, figs. 14, 

 15, 16 (?). — Terrigi, Atti Accad. Lincei, ser. 4, Mem. vol. 6, 1893, p. 120, 

 pi. 10, fig. 7. — Goes, Kongl. Svensk. Vet. Akad. Handl., vol. 25, No. 9, 

 1894, p. 104, pi. 17, fig. 830 (part) (?).— Cushman, Publ. 342, Carnegie 

 Instit., Washington, 1924, p. 47, pi. 16, fig. 1. 



Nonionina communis d'Orbigny, Foram. Foss. Bass. Tert. Vienne, 1846, p. 

 106, pi. 5, figs. 7, 8. — Parker and Jones, Ann. Mag. Nat. Hist., ser. 2, 

 vol. 19, 1857, p. 287, pi. 11, figs. 7, 8. — Terquem, Essai Class. Anim. 

 Dunkerque, 1875, p. 24, pi. 1, figs. 17 a, b. — Terrigi, Atti Accad. Pont. 

 Nuovi Lincei, vol. 33, 1880, p. 96, pi. 4, figs. 75, 76. 



Nautilus J aba Fichtel and Moll, Test. Micr., 1798, p. 103, pi. 19, figs. a-c. 



Test planispiral, bilaterally symmetrical, somewhat evolute, 

 periphery rounded, whole test compressed, umbilici depressed, 

 unornamented ; chambers numerous averaging about 12 in the last- 

 formed coil, later ones as they tend to become evolute, broadening 

 on the proximal end and the outline of the periphery somewhat less 

 curved and the chambers slightly more inflated; sutures distinct, 



