LAGENA SULCATA. 187 



Lagena sulcata, Brady and Rolertson, 1876. Eep. Br. Assoc, for 1875, p. 189. 

 Lagenulina costata, Terquem, 1876. Plage Duukerque, p. 67, pi. vii, fig. 2. 

 Lagena Nateii, Blake, 1876. Yorkshire Lias, p. 453, pi. xviii, fig. 8 (= ? striata). 



— SULCATA, Wright, 1877. Proceed. Belfast Pield Club for 1876-7, Appendix 



iv, p. 103, pi. iv, fig. 10. 

 Capitellina multisteiata, Marsson, 1878. Mitth. Nat. Verein Neu-Vorpom. u. 



Eugen, Jahrg. x, p. 123, pi. i, 

 fig. 3. 

 Lagena sulcata. Vine, 1878. Science Gossip, vol. xiv, p. 52, fig. 27. 



— — NiclwJson, 1879. Manual Palwout., vol. i, p. 114, fig. 18/. 



— COSTATA,^ Terquem, 1882. Mem. Soc. Geol. Fr., ser. 3, vol. ii, mem. iii, p. 27, 



pi. i (ix), fig. 11 (Z. sulcata? neckless). 



— OENATA, Terquem, 1882. Ibid., fig. 12. 



Lagena sulcata, Brady, 1884. Eeport ' Challenger,' pp. 445 and 462, pi. Ivii, 



figs. 23, 26, 33, 34 ; pi. Iviii, figs. 4, 17, 18 ; and 

 " winged varieties," p. 462, pi. Isi, figs. 35 — 37. 



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



p. 338, pi. xiv, figs. 1 and 2. 



— striata, Sherhorn and Chapman, 1886. Journ. E. Microsc. Soc, ser. 2, 



vol. vi, p. 745, pi. xiv, fig. 16 

 (long-necked). 



— — var., lidem, 1886. Ibid., fig. 17 (round, with sharp ribs ; ap- 



proaching acuticosta). 



— sulcata, lidem, 1886. Ibid., fig. IS. 



— — Brady, 1887. Ibid., vol. for 1887, p. 903. 



— costata. Idem, 1887. Ibid., p. 184, pi. v, fig. 5 (neckless ; strong 



ribs). 



— steiata, Idem, 1887. Ibid., fig. 6 (neckless; feeble riblets). 



— — Brady, 1888. Geol. Mag., dec. 3, vol. v, p. 481, pi. xiii, fig. 11. 



— — Brady, Parker, and Junes, 18SS. Trans. Zool. Soc, vol. xii, fig. 11. 



No. 7, p. 222, pi. xliv, figs. 18, 22, 34. 



— — Chapman, 1893. Journ. Eoy. Micr. Soc. for 1893, p. 583, 



pi. viii, fig. 11. 



— — Goes, 1894. K. Svensk. Vet.-Akad. Handl., vol. xxv, No. 9, 



p. 78, pi. xiii, figs. 742—744. 



Characters. — To tlie description given at p. 36 of Part I we may add that the 

 riblets not only vary in strength, but in length, sometimes reaching halfway or 

 less from the base to the top (that is, from the aboral to the oral end of the shell), 

 becoming semistriata, sometimes alternating, long, and short, as in interriipta. Also 

 that the upper end of the strife may become spiral on the neck, as in .striata ; and 

 the lower ends may either end off distinct around the base, or may be fused 

 together into a mucro. 



Occurrence. — Lagena sulcata is at home in all seas and at nearly all depths, and 



1 It is not possible to determine, in many cases, if the published " costate " and " sulcate" forms 

 have been named strictly in accordance with the plan of their sculpturing. 



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