154 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



The above references give the only ones of this species for the 

 Atlantic from comparatively shallow water about the British Isles. 



POLYMORPHINA THOUINI D'Orbigny. 



Under this name Brady "*^ records specimens from the Estuary of 

 the Dee, based evidently on Siddall's specimens. 



POLYMORPHINA COMPRESSA D'Orbigny. 



Polymorphina compressa D'Orbigny, Foram. Foss. Vienne, 1846, p. 234 

 pi. 13. figs. 25-30. — H. B. Brady, Parker, and Jones, Trans. Linn 

 Soc. London, vol. 27, 1870, p. 227, pi. 40, figs. 12 a^A— Balkwili, and 

 Wright, Proc. Roy. Irish Acad., ser. 2, vol. 3, 1882, p. 549.— H. B 

 Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 565, pi. 72 

 figs. 9-11. — Balkwill and Wright, Trans. Roy. Irish Acad., vol. 28 

 1885, p. 346.— H. B. Brady, Journ. Roy. Micr. Soc, 1887, p 

 914. — Wright, Proc. Roy. Irish Acad., ser. 3, vol 1, 1891, p 

 487. — Robertson, Proc. Nat. Hist. Soc. Glasgow, pt. 3, 1892, p 

 241.— Woodward, The Observer, vol. 4, 1893, p. 144.— Egger, Abh 

 kon. bay. Akad. Wiss. Miinchen, CI. II, vol. 18, 1893, p. 309, pi. 9 

 figs. 11-13.— Morton, Proc. Portland Soc, vol. 2, 1897, p. 119.— Wright 

 Irish Nat., vol. 9, No. 3, 1900, p. 55. — Whiteaves, Geol. Survey 

 Canada, 1901, p. 10.— Wright, Irish Nat., vol. 11, 1902, p. 213.— Ear- 

 land, Journ. Quekett Micr. Club, ser. 2, vol. 9, No. 57, 1905, p. 

 217. — Balkwill and Millett, Rec. Foram. Galway, 1908, p. 6. — Heron- 

 Allen and E.\rland, Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, 

 p. 101 ; Trans. Linn. Soc. London, ser. 2, vol. 11, 1916, p. 265 ; Journ. 

 Roy. Micr. Soc, 1916, p. 49. 



I have found no typical Polymorphina compressa in the collec- 

 tions from the Western Atlantic. As the above list of references 

 will show, however, the species has been recorded many times from 

 the Eastern Atlantic, especially in the region of the British. Isles. 

 A reference to the few figures, however, will show what a diversity 

 of form specimens referred to this species have. 



POLYMORPHINA CONCAVA Williamson. 



Plate 40, fig. 9. 



Polymorphina lactea (Walker and Jacob), var. concava Williamson, 

 Rec. Foram. Great Britain, 1858, p. 72, pi. 6, figs, 151, 152. — Sidebottom, 

 Mem. Proc. Manchester Lit. Philos. Soc, vol. 51, No. 9, 1907, p. 14, 

 pi. 3, fig. 89 ; vol. 54, No. 16, 1910, p. 22. 



Polymorphina concava H. B. Brady, Parker, and Jones, Trans. Linn. Soc. 

 London, vol. 27, 1870, p. 236, pi. 40, figs. 22 a, &.— Balkwill and 

 Wright, Proc. Roy. Irish Acad., ser. 2, vol. 3, 1882, p. 549 ; Trans. Roy. 

 Irish Acad., vol. 28, 1885, p. 346.— H. B. Brady, Journ. Roy. 

 Micr. Soc, 1887, p. 914. — Wright, Proc. Roy. Irish Acad., ser. 3, vol. 

 1, 1891, p. 487.— Eabland, Journ. Quekett Micr. Club, ser. 2, vol. 9, 

 No. 57, 1905, p. 217. — Cushman, Proc. Boston Soc. Nat. Hist, vol. 34, 

 No. 2, 1908, p. 28. — Heron-Allen and Eabland, Journ. Roy. Micr. Soc, 

 1907, p. 431 ; Proc Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 102 ; Trans. 

 Linn. Soc. London, ser. 2, vol. 11, 1916, p. 264 ; Journ. Roy. Micr. Soc, 

 1916, p. 48. 



« Journ. Roy. Micr. Soc, 1887, p. 913. 



