LAGENA LAGENOIDES. 201 



19. Lagena LAGENOIDES {Williamso7i) , 1858. Plate I, figs. 29 — 31. 



Part I, 1866, page 43, No. 9 (L. ornata) ; and Appendix II, Table, No. 32. 

 Corrected Synonymy : 



Entosolenia maeginata, var. lagenoides, Williamson, 1858. Rec. For. Gt. Brit., 



p. 11, pi. i, figs. 25, 26. 

 Lagena lagenoides, Reuss, 1862. Sitz. k. Akad. Wiss. "Wien, vol. xlvi, p. 324, 



pi. ii, figs. 27, 28. 

 FissTJEiNA teapezoidea, SeguBTiza, 1862. For. Men. Messin., p. 68, pi. ii, fig. 34. 



— Eeussiana, Idem, 1862. Ibid., p. 69, pi. ii, fig. 40. 



— EADiATA, Idem, 1862. Ibid., p. 70, pi. ii, figs. 42, 43. 



Lagena oknata, Jones, Parker, and Brady, 1866. Monogr. Foram. Crag, p. 43, 



pi. i, figs. 29—31. 

 ^ FORMOSA, Schwager, 1866. Nov.-Exped. G-eol. II, p. 206, pi. iv, fig. 19 b, c. 

 Entosolenia mabginata, var. oenata, G. M. Dawson, 1870. Canad. Nat., N.S., 



vol. V, p. 177, pi. o, fig. 12. 

 Lagena lagenoides, O. Jones, 1872. Tr. Linn. Soc, vol. sxx, p. 59, pi. xix, fig. 42. 



— vDLGASis, var. maeginata, Idem. 1872. Ibid., p. 55, pi. xix, fig. 32. 



— — var. spiNOSA-MAEGiNATA, Jrfewi., 1872. Ibid., p. 59, pi. xix, p. 43. 



— TUBULiEEEA, Brady, 1881. Q. J. Micros. Soc, N.S., vol. xxi, p. 61. 



— lagenoides. Idem., 1884. Eeport ' Challenger,' pp. 447 and 479, pi. Ix, 



figs. 6, 7, 9, 12—14. 



— — Balkwill and Millett, 1884. Journ. Microscopy, vol. iii, 



p. 82, pi. ii, fig. 11. 



— — Balhwill and Wright, 1885. Trans. E. I. Acad., vol. xxviii 



(Sci.), p. 341, pi. xii, fig. 22. 



— — B., P., and J., 1888. Trans. Zool. Soc, vol. xii. No. 7, p. 223, 



pi. xliv, fig. 23. 



— — Egger, 1893. Abhandl. k. Bayer. Ak. Wiss., vol. xviii, part 2, 



p. 335, pi. X, fig. 85, and figs. 19, 87, and 

 88 (?), named seminiformis, but not de- 

 scribed. 



— SEEEATA, Scliltimherger, 1894. Mem. Soc Zool. Fr., vol. vii, p. 258, pi. iii, 



fig- 7. 



Characters. — Altliougli homologous, tlie celhdated margin of "Williamson's 

 ornata is sufficiently distinct from the tuhdated margin of his lagenoides to make 

 the adoption of the latter name preferable. 



Occurrence. — Lagena lagenoides has a considerable geographical and bathy- 

 metrical range. It is not uncommon off the coasts of the British Isles, 

 appears to be more common in the North Atlantic, and occurs with less frequency 

 in the South Atlantic and South Pacific. The depths from which it has been 

 obtained range between 38 and 2740 fathoms. 



