FOEAMINIFERA OF NORTH PACIFIC OCEAN". 5 



LAGENA OVUM (Ehrenberg). 

 Plate 2, fig. 2. 



Miliola ovum Ehrenberg, Berlin Monatsber., 1843, p. 166; Mikrogeologie, 1854, 



pi. 23, fig. 2; pi. 29, fig. 45; pi. 31, fig. 4. 

 Lagena ovum Marsson, Mitth. nat. Ver. Neu-Vorpom. Riigen, Jahrg. 10, 1878, 



p. 120, pi. 1, fig. 1. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 



1884, p. 454, pi. 56, fig. 5. 



Description. — Test elongate, elliptical in front view, nearly circular 

 in cross section, slightly compressed, ends broadly rounded, nearly 

 equal; wall thin, transparent, smooth; aperture broadly elliptical, 

 central, with a comparatively short entosolenian neck. 



Length 0.4 mm.; breadth 0.2 mm. 



Distribution. — Brady records this species from a single Challenger 

 station in the North Pacific, in 2,300 fathoms. Specimens appar- 

 ently referable to this species have occurred at three Nero stations, 

 1129 in 1,505 fathoms between Guam and Yokohama, 2049 in 2,226 

 fathoms, and 2064 in 1,355 fathoms, both off the Hawaiian Islands. 



Ehrenberg's figures referred to Miliola are rather crude and inde- 

 terminate to which to assign this recent species, and it may be ques- 

 tioned whether this is a wholly satisfactory disposal of these almost 

 elliptical forms. 



LAGENA L.EVIS (Montagu). 



Plate 1, fig. 3; plate 38, fig. 5. 



"Serpula (Lagena) lasvis ovalis" Walker and Boys, Test. Min., 1784, p. 3, 

 pi. 1, fig. 9. 



Vermiculum Iseve Montagu, Test. Brit., 1803, p. 524. 



Lagenula Isevis Fleming, Brit. Anim., 1828, p. 235. 



Lagena lasvis Williamson, Ann. Mag. Nat. Hist., ser. 2, vol. 1, 1848, p. 12, pi. 1, 

 figs. 1, 2. — H. B. Brady, Rep. Voy. Challenger, Zoology, vol. 9, 1884, p. 

 455.— Jones, Quart. Journ. Geol. Soc, vol. 40, 1884, p. 769, pi. 34, fig. 3 [?].— 

 Sherborn and Chapman, Journ. Roy. Micr. Soc, 1886, p. 744, pi. 14, fig. 

 13. — Haetjsler, Neues Jahrb. fur Min., pt. 1, 1887, p. 181, pi. 4, figs. 

 31-49. — Fornasini, Mem. Accad. Sci. 1st. Bologna, ser. 4, vol. 10, J890, 

 p. 466, pi. 1, fig. 1.— Mariani, Boll. Soc. Geol. Ital., vol. 10, 1891, p. 725, 

 pi. 21, fig. 9.— Wright, Proc. Roy. Irish Acad., ser. 3, vol. 1, 1891, p. 478.— 

 Fornasini, Mem. Accad. Sci. 1st. Bologna, ser. 5, vol. 3, 1893, p. 431, pi. 2, 

 fig. 1. — Chapman, Journ. Roy. Micr. Soc, 1893, p. 581, pi. 8, fig. 5. — Goes, 

 Kongl. Svensk. Vet. Akad. Handl., vol. 25, No. 9, 1894, p. 74, pi. 13, figs. 

 719-722.— Egger, Jahrb. 16, Nat. Ver. Passau, 1895, p. 24, pi. 2, fig. 11.— 

 Goes, Bull. Mus. Comp. Zool., vol. 29, 1896, p. 51.— Fornasini, Mem. 

 Accad. Sci. 1st. Bologna, ser. 5, vol. 7, 1898, p. 210, pi., fig. 19. — Egger, 

 Abh. k6n. bay. Akad. Wiss. Miinchen, CI. n, vol. 21, 1899, p. 102, pi. 5, 

 fig. 2.— Flint, Rep. U. S. Nat. Mus., 1897 (1899), p. 306, pi. 53, fig. 6.— 

 Wright, in Meade, Geol. Mag., dec. 4, vol. 7, 1900, p. 100, pi. 5, fig. 12.-^ 

 Sllvestri, Mem. Pont. Accad. Nuovi Lincei, vol. 17, 1900, p. 244, pi. 6, 

 fig. 56. — Mlllett, Journ. Roy. Micr. Soc, 1901, p. 9. — Bagg, Proc. U. S. 

 Nat. Mus., vol. 34, 1908, p. 141. 



Miliola lasvis Ehrenberg, Mikrogeologie, 1854, pi. 26, fig. 2; pi. 31, fig. 5. 



