44 BULLETIN 104, UNITED STATES NATIONAL MUSEUM. 



LAGENA ORBIGNYANA (Seguenza), variety. 



Plate 8, fig. 4. 



The specimen figured lias a peculiar central ornamentation con- 

 sisting of irregular longitudinal lines caused by confluent edges of 

 coarse pits. 



The specimen is not well preserved except in the central region, 

 but it may be a variety of this species. 



Lagena orhignyana, var. — material examined. 



LAGENA ORNATA Williamson. 



Plate 8, figs. 6, 8. 



Entosolenia marginata Montagu, var. ornaia Williamson, Rec. Foram. 

 Great Britain, 1858, p. 11, pi. 1, fig. 24. 



Lagena ornata Jones, Parker, and H. B. Brady, Pal. See, vol. 19, 1866, 

 p. 43, pi. 1, figs. 29-31. — Balkwill and Wright, Proc. Roy. Irish Acad., 

 ser. 2, vol. 3, 1882, p. 548.— H. B. Brady, Journ. Roy. Micr. Soc, 1877, 

 p. 907. — Whiteaves, Geol. Survey Canada, 1901, p. 10. — Heron-Allen 

 and Earland, Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 88, pi. 7, 

 fig. 8 ; Trans. Linn. Soc. London, ser. 2, vol. 11, 1916, p. 252 ; Journ. 

 Roy. Micr. Soc, 1916, p. 46. 



Except for the record of Wliiteaves this species seems to be re- 

 corded only from the British Isles. It has been undoubtedly con- 

 fused with Lagena lagenoides Williamson, but seems to be distinct. 

 Heron- Allen and Earland note that it " appears to be always con- 

 stant to type, even in such minutiae as the curving of the entosolenian 

 tube." 



LAGENA OVUM (Ehrenberg). 



Plate 8, figs. 9, 10. 



Milvola 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.— Egger, Abh. kon. bay. Akad. Wiss. 

 Munchen, CI. II, vol. 18, 1893, p. 323, pi. 10, fig. 9.— Cushman, Bull. 71, 

 U. S. Nat. Mus., pt. 3, 1913, p. 5, pi. 2, fig. 2.— Heron-Allen and Ear- 

 land, Proc. Roy. Irish Acad., vol. 31, pt. 64, 1913, p. 73, pi. 6, fig. 1; 

 Trans. Linn. Soc. London, ser. 2, vol. 11, 1916, p 242. 



