FORAMINIFERA OF THE ATLANTIC OCEAN. 



33 



characteristic if they can be considered specifically identical with 

 this species. It has not been recorded in all the work from about 

 the British Isles and is evidently a species of comparatiA-ely deep 

 water. It was found at a number of stations south of the latitude 

 of New York, off the northeastern coast of the United States, one 

 station in the northern part of the Gulf of Mexico, and one east of 

 Trinidad. Flint's specimens were from the Gulf of Mexico and the 

 Caribbean. Brady's stations are well scattered in the deeper water 

 of various parts of the Atlantic and elsewhere. 



Lagena longispina — material examined. 



LAGENA LUCIDA (Williamson). 



Plate 6. figs. 1, 2. 



Entosolenia marginata Montagu, var. lucida Williamson. Ann. Mag. Nat. 

 Hist., ser. 2, vol. 1, 1848, p. 17, pi. 2, fig. 17. 



Lagena lucida Reuss. Sitz. Akad. Wiss. Wien, vol. 46, pt. 1, 18G2 (1863), p. 

 324, pi. 2, figs. 25, 26. — Balkwill and Wright, Proc. Roy. Irish Acad., 

 ser. 2, vol. 3, 1882, p. .548. — Balkwill and Millett, Journ. Micr., vol. 

 3, 1884, p. 80, pi. 2, figs 2-5, 26.— H. B. Brady, Journ. Roy. Micr. Soc, 

 1887, p. 90.5.— Robertson, Proc. Nat. Hist. Soc. Glasgow, pt. 3, 1892. 

 p. 241.— Wright, Irish Nat., vol. 9, No. 3, 1900, p. 54.— Earland, 

 Journ. Quekett Micr. Club, ser. 2. vol. 9, No. 57, 1905, p. 213.— Side- 

 bottom, Mem. Proc. Manchester Lit. Philos. Soc, vol. 50, No. 5, 1906, p. 

 6, pi. 1, figs. 9-12. — Balkwill and Millett, Rec. Foram. Galway. 1908. 

 p. 5. — Heron-Allen and Earland, .Tourn. Roy. Micr. Soc, 1909, p. 

 425. — SiDEBOTTOM, Mem. Proc. Manchester Lit. Philos. Soc, vol. 54, 

 No. 16, 1910, p. 17. pi. 2, fig. 7; Journ. Quekett Micr. Club, vol. 11, 

 1912, p. 401, pi. 17, fig. 13 (12? 14?).— Heron -Allen and Earland, 

 Proc Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 87; Trans. Linn. Soc. 

 London, ser 2, vol. 11, 1916, p. 249; Journ. Roy. Micr. Soc, 1910. p. 46. 



Description. — Test somewhat compressed, marginal portion and 

 central area clear and translucent, with a rather broad more or less 

 opaque band between; wall smooth; aperture usually fissurine or 

 rounded. 



Length 0.30-0.50 mm. 



Distribution. — Williamson's original figure of this species shows a 

 typical British specimen. In this same form the species is common 



