FORAMINIFERA OF THE ATLANTIC OCEAN. 



105 



CRISTELLARIA OCCIDENTALIS, new species, var. TORRIDA, new variety. 



Plate 25, fig. 1. 



Description. — Variety differing from the typical in the very trans- 

 hicent character of the test and the keel which is thin and transparent, 

 7 or 8 chambers in the last-formed coil, the aperture not distinctly 

 projecting as in the typical. 



Diameter up to 2 mm. 



Distrihution. — Type-specimen (U.S.N.M. Cat. No. 18813) from 

 Albatross station D2377, in 210 fathoms (384 meters), in the north- 

 ern part of the Gulf of Mexico. It has also occurred at other sta- 

 tions in this same region, off the southern coast of Florida, and at 

 two stations south of Cape Hatteras on the Atlantic coast, thus fol- 

 lowing the distribution of numerous other species of the Lagenidae. 

 This is probably the form recorded by Flint as CristeUnria reni- 

 formis from stations D2377 and D2385 from the Gulf of Mexico. 

 At least one of Flint's specimens which he records as Gristellaria 

 cultmta (Rep. U. S. Nat. Mus., 1897 (1899), pi. 65, fig. 2, right-hand 

 specimen) is probably this variety. 



Cristellaria occidentalis, var. torrida — material examined. 



CRISTELLARIA GIBBA D'Orbiffny. 



Plate 25, fig. 4. 



Cristellaria gibba D'Orbigny, Ann. Sci. Nat., vol. 7, 1826, p. 292, No. 17; 

 in De la Sagra, Hist. Fis. Pol. Nat. Cuba, " Foraniiniferes," 3839, p. G3, 

 pi. 7, figs. 20, 21.— H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 

 1884, p. 546, pi. 69, figs. 8, 9.— Pearcey, Trans. Glasgow Nat. Hist. 

 Soc, vol. 2, 1890, p. 178.— Woodward, The Observer, vol. 4, 1893, p. 

 144. — Egger, Abh. kon. bay. Akad. Wiss. Miinchen, CI. II, vol. 18, 1893, 

 p. 352, pi. 12, figs. 21, 27, 39.— Goiis, Bull. Mus. Comp. Zool., vol. 29, 

 1896, p. 55.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 317, pi. 64, 

 fig. 1. — Chapman, The Foraminifera, 1902, p. 403. — Millett, Journ. 

 Roy. Micr. Soc, 1902, p. 255.— Earland, Journ. Quekett Micr. Club, 

 ser. 2, vol. 9, No. 57, 1905, p. 216.— Chapman, Subantarctic Ids. N. 

 Zealand, 1909, p. 344.— Cushman, Bull. 71, U. S. Nat. Mus., pt. 3, 1913, 

 p. 69, pi. 35, fig. 1.— Heron-Allen and Earland, Proc. Roy. Irish Acad., 

 vol. 31, pt. 64, 1913, p. 99; Trans. Linn. Soc. London, ser. 2, vol. 11, 

 1916, p. 263.— Mestayer, Trans. N. Zealand Inst., vol. 48, 1916, p. 129.— 

 Chapman, Rep. Sci. Invest, 1916 (1917), p. 44, pi. 5, fig. 8.— Cush- 

 man, Proc. U. S. Nat. Mus., vol. 56, 1919, p. 615. 



