58 PROCEEDINGS OF THE NATIONAL MUSEUM vol.77 



Distribution. — We have specimens in our collection from the Eocene 

 of France from Grignon and Damery. 



PYRULINA ACUMINATA d'Orbigny 



Plate 14, figures 7 a-c 



Pyrulina acuminata d'Orbigny, Mem. Soc. Geol. France, 1840, p. 43, pi 4, 

 figs. 18, 19. — Reuss, in Geinitz, Grundr. Verstein., 1845-46, p. 670, pi. 24, 

 fig. 64.— d'Orbigny, Prodrome de Paleont., vol. 2, 1850, p. 282, No. 

 1405. — Reuss, Haidinger's Nat. Abhandl., vol. 4, 1851, p. 26. — Beissel, 

 Abhandl. kon. Preuss. geol. Landes., n. ser., vol. 3, 1891, p. 63, pi. 10, 

 figs. 54-59. 



Pyrulina ovulum Ehrenberg, Mikrogeologie, 1854, pi. 31, figs. 35, 36. 



Polymorphina acuminata H. B. Brady, Parker, and Jones (not d'Orbigny), 

 Trans. Linn. Soc, vol. 27, 1870, p. 219, pi. 39, figs. 4 a, 6.— Egger, 

 Abhandl. kon. bay. Akad. Wiss. Munchen, CI. II, vol. 21, pt. 1, 1899, 

 p. 130, pi. 17, fig. 3. 



Polymorphina (Pyrula) acuminata Egger, Ber. nat. Ver. Passau, 1907, 

 p. 40, pi. 4, fig. 27. 



Test ovate-elongate to fusiform, both ends acuminate; chambers 

 inflated, much embracing, arranged in a nearly triserial series in the 

 early stages, becoming biserial later; sutures not depressed, difficult 

 to recognize; wall smooth; aperture produced, radiate. 



Length 0.80-1.30 mm.; breadth 0.28-0.50 mm.; thickness 0.25- 

 0.50 mm. 



In some of its characters, Pyrulina acuminata bears some resem- 

 blance to Pyrulina porreda, but the latter has generally a much more 

 slender test, the chambers scarcely overlapping, and is not as com- 

 pactly built as is the present species. Both extremities are strongly 

 acuminate, a very characteristic feature of the species. 



Distribution. — Not rare in Cretaceous deposits, but very rare in 

 the earlier Tertiary. We have specimens of Pyrulina acuminata from 

 the following locahties: France, Upper Cretaceous, Chalk, Bougival. 

 Germany, Upper Senonian, Rinkerode and Dasbeck, both in West- 

 phalia. We have a series of specimens from the lower Tertiary of 

 San Fernando, Trinidad, British West Indies, collected by P. W. 

 Jarvis, which seem identical with this species. The series contains 

 slightly compressed as well as normal specimens and several that are 

 fistulose. 



PYRULINA ALBATROSSI Cushman and Ozawa, new species 



Plate 15, figures 1-3 



Test elongate, fusiform to cyhndrical, acute at both ends; chambers 

 elongated, much embracing, arranged in a triserial series, becoming 

 biserial later, but often one extra, rounded chamber added at the 

 top of the test, each succeeding chamber slightly removed from the 

 base; sutures but little depressed, nearly vertical, generally distinct; 

 wall smooth, thin, almost transparent; aperture radiate. 



