no. 2360. FORAMINIFERA FROM JAMAICA— CUSIIM AN. 1)1 



as this species and A. lobata are concerned, is very close to Amphi- 

 stegina rather than to Divcorbis, as it is placed by Brady. The char- 

 acters are very constant, and there is evidently in this region a 

 remarkable development of foraminifera of this genus, both in recent 

 sands and in late tertiary deposits. The figures given by d'Orbigny 

 of this species are excellent. Specimens exceed somewhat the 

 diameter given by d'Orbigny of one-half mm., but do not attain a 

 size of more than 0.75-0.80 mm. in this material. An examination 

 of the West Indian and Florida material shows that this species is 

 very abundant in comparatively shallow water throughout a large 

 part of the region, extending north as far as Cape Hatteras on the 

 Atlantic coast. 



Genus NONION1NA d'Orbigny, 1826. 



NONIONINA GEATELOUPI d'Orbigny. 



Plate 14, figs. 9-11. 



Nonionina gratclouvi cTOrbigny, Ann. Sci. Nat., vol. 7, 1826, p. 294, No. 19; 

 Foram. Cuba, 1839, p. 46, pi. 6, figs. 6-7.— Cushman, Publ. 291, Carnegie 

 Inst. Washington, 1919, p. 4S. 



Specimens identical with this species as figured by d'Orbigny were 

 dredged at Montego Bay in 1, 6, and 10 fathoms (2, 11, and 18 

 meters). D'Orbigny's specimens were from Cuba, Jamaica, and 

 Martinique. D'Orbigny's figure of the side view, with the peculiar 

 angle made by the last few chambers and the swollen median portion 

 in front view, are characteristic. 



N. sloanii, which was not found in the Jamaican material, is, how- 

 ever, found in the later Tertiary of the West Indies, occurring both in 

 Cuba and Santo Domingo. It seems to be a valid species, and with 

 its greater compression in front view can be distinguished from forms 

 usually assigned to N. boueana. 



Genus POLYSTOMELLA Lamarck, 1822. 



POLYSTOMELLA LANIERI d'Orbigny. 



Plate 14, figs. 12, 13. 



Polyslomella lanieri oVOrbigny, Foram. Cuba, 1839, p. 54, pi. 7, figs. 12- 

 13.— Cushman, Publ. 291, Carnegie Inst. Washington, 1919, p. 49. 



Brady, in the Challenger Report (p. 736), places this species as a 

 synonym of P. crispa Linnaeus. While this may be a reasonable 

 disposition of the species, the Jamaican specimens are very close to 

 d'Orbign}^'s figures of P. lanieri They occurred at stations 1 and 2 

 at Montego Bay and at Runaway Bay. 



No specimens vvere found of P. sagra d'Orbigny, but the species 

 is found in the West Indies as a late Tertiary fossil, both in Santo 

 Domingo and Cuba, and probably is a valid recent species. 

 D'Orbignv noted it as rare in the shore sands of Cuba. 



