10 BULLETIN 104, UNITED STATES NATIONAL MUSEUM 



NONION GRATELOUPI (d'Orbigny) 



Plate 3, figures 9-11; Plate 4, figures 1-4 



Nonionina grateloupi d'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 294, No. 19; 

 in De la Sagra, Hist. Fis. Pol. Nat. Cuba, 1839, "Foraminif fires," p. 46, 

 pi. 6, figs. 6, 7. — FoRNASiNi, Mem. Accad. Sci. Istit. Bologna, ser. 6, vol. 1, 

 1904, p. 12, pi. 3, fig. 5.— CusHMAN, Publ. 291, Carnegie Instit. Wash- 

 ington, 1919, p. 48; Proc. U. S. Nat. Mus., vol. 59, 1921, p. 61, pi. 14, figs. 

 9-11; Publ. 311, Carnegie Instit. Washington, 1922, p. 55, pi. 9, figs. 7, 8; 

 Publ. 344, 1926, p. 79. 



Test planispiral, bilaterally symmetrical, mostly involute, in 

 peripheral view the sides nearly parallel, periphery rounded ; chambers 

 numerous, usually 10 to 12 in the last-formed coil in adults, chambers 

 increasing rapidly in length, especially in the last few chambers; 

 sutures distinct, slightly depressed; wall smooth, finely perforate; 

 aperture small, at the base of the last-formed chamber, narrow. 



Length, up to 0.60 mm.; breadth, 0.35 mm.; thickness, 0.22 mm. 



D'Orbigny originally noted this species from the Miocene of Dax, 

 France. Later he described and figured a species under the same 

 name from shore sands of Cuba, Jamaica and Martinique. I have 

 recorded it from Montego Bay, on the north coast of Jamaica, from 

 numerous stations about the Tortugas, and from San Juan Harbor, 

 Porto Rico. It occurred fossil in the Late Tertiary of the gorge of 

 the Yumuri River, Matanzas, Cuba, and from Bluff 3, Cercado de 

 Mao, Santo Domingo. It is the most common species of the genus 

 in the West Indian region. 



Nonion grateloupi — Material examined 



> Feet. 



